{"kind": "product", "path": "vulns/ubuntu-20.04-lts/tomcat9", "name": "tomcat9", "product": "tomcat9", "ecosystem": "Ubuntu:20.04:LTS", "items": [{"id": "CVE-2024-23672", "noindex": false, "published": "2024-03-13T15:48:42.610Z", "modified": "2025-10-29T11:57:10.244Z", "cvss": 6.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "severity": "medium", "epss": 0.02313, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-23672", "title": "Apache Tomcat: WebSocket DoS with incomplete closing handshake", "description": "Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98.\n\nOlder, EOL versions may also be affected.\n\n\nUsers are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.", "references": ["https://lists.apache.org/thread/cmpswfx6tj4s7x0nxxosvfqs11lvdx2f", "https://security.netapp.com/advisory/ntap-20240402-0002/", "https://lists.debian.org/debian-lts-announce/2024/04/msg00001.html"], "fixes": ["9.0.31-1ubuntu0.8"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-46589", "noindex": false, "published": "2023-11-28T15:31:52.366Z", "modified": "2025-10-29T12:00:24.622Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "severity": "high", "epss": 0.02651, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-46589", "title": "Apache Tomcat: HTTP request smuggling via malformed trailer headers", "description": "Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single \nrequest as multiple requests leading to the possibility of request \nsmuggling when behind a reverse proxy.\n\n\nOlder, EOL versions may also be affected.\n\n\nUsers are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.", "references": ["https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxr", "https://www.openwall.com/lists/oss-security/2023/11/28/2", "https://security.netapp.com/advisory/ntap-20231214-0009/"], "fixes": ["9.0.31-1ubuntu0.7"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-45648", "noindex": false, "published": "2023-10-10T18:38:34.097Z", "modified": "2025-10-29T12:00:47.484Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "severity": "medium", "epss": 0.05883, "kev": false, "exploits": ["nuclei"], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-45648", "title": "Apache Tomcat: Trailer header parsing too lenient", "description": "Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially \ncrafted, invalid trailer header could cause Tomcat to treat a single \nrequest as multiple requests leading to the possibility of request \nsmuggling when behind a reverse proxy.\n\nOlder, EOL versions may also be affected.\n\n\nUsers are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.", "references": ["https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp", "http://www.openwall.com/lists/oss-security/2023/10/10/10", "https://www.debian.org/security/2023/dsa-5522"], "fixes": ["9.0.31-1ubuntu0.8"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-42795", "noindex": false, "published": "2023-10-10T17:42:16.705Z", "modified": "2025-10-29T12:02:59.708Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "severity": "medium", "epss": 0.02515, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-42795", "title": "Apache Tomcat: Failure during request clean-up leads to sensitive data leaking to subsequent requests", "description": "Incomplete Cleanup vulnerability in Apache Tomcat.When recycling various internal objects in Apache Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.80 and from 8.5.0 through 8.5.93, an error could \ncause Tomcat to skip some parts of the recycling process leading to \ninformation leaking from the current request/response to the next.\nOlder, EOL versions may also be affected.\n\n\nUsers are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fixes the issue.", "references": ["https://lists.apache.org/thread/065jfyo583490r9j2v73nhpyxdob56lw", "http://www.openwall.com/lists/oss-security/2023/10/10/9", "https://www.debian.org/security/2023/dsa-5522"], "fixes": ["9.0.31-1ubuntu0.8"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-44487", "noindex": false, "published": "2023-10-10T00:00:00.000Z", "modified": "2026-10-14T23:51:51.782Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.99999, "kev": true, "exploits": ["exploitdb", "public-poc"], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-44487", "title": "CVE-2023-44487", "description": "The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.", "references": ["https://github.com/dotnet/core/blob/e4613450ea0da7fd2fc6b61dfb2c1c1dec1ce9ec/release-notes/6.0/6.0.23/6.0.23.md?plain=1#L73", "https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/", "https://aws.amazon.com/security/security-bulletins/AWS-2023-011/"], "fixes": ["9.0.31-1ubuntu0.9"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-41080", "noindex": false, "published": "2023-08-25T20:39:36.584Z", "modified": "2025-10-29T12:04:40.271Z", "cvss": 6.1, "cvss_vector": "", "severity": "medium", "epss": 0.06459, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-41080", "title": "Apache Tomcat: Open redirect with FORM authentication", "description": "URL Redirection to Untrusted Site ('Open Redirect') vulnerability in FORM authentication feature Apache Tomcat.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.0.12, from 9.0.0-M1 through 9.0.79 and from 8.5.0 through 8.5.92.\nOlder, EOL versions may also be affected.\n\n\nThe vulnerability is limited to the ROOT (default) web application.", "references": ["https://lists.apache.org/thread/71wvwprtx2j2m54fovq9zr7gbm2wow2f", "https://security.netapp.com/advisory/ntap-20230921-0006/", "https://www.debian.org/security/2023/dsa-5522"], "fixes": ["9.0.31-1ubuntu0.8"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-28708", "noindex": false, "published": "2023-03-22T10:10:58.956Z", "modified": "2025-11-04T19:15:54.760Z", "cvss": 4.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N", "severity": "medium", "epss": 0.01831, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-28708", "title": "Apache Tomcat: JSESSIONID Cookie missing secure attribute in some configurations", "description": "When using the RemoteIpFilter with requests received from a    reverse proxy via HTTP that include the X-Forwarded-Proto    header set to https, session cookies created by Apache Tomcat 11.0.0-M1 to 11.0.0.-M2, 10.1.0-M1 to 10.1.5, 9.0.0-M1 to 9.0.71 and 8.5.0 to 8.5.85 did not include the secure attribute. This could result in the user agent transmitting the session cookie over an insecure channel.\n\nOlder, EOL versions may also be affected.", "references": ["https://lists.apache.org/thread/hdksc59z3s7tm39x0pp33mtwdrt8qr67", "https://security.netapp.com/advisory/ntap-20230331-0012/", "https://nvd.nist.gov/vuln/detail/CVE-2023-28708"], "fixes": ["9.0.31-1ubuntu0.8"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2022-42252", "noindex": false, "published": "2022-11-01T00:00:00.000Z", "modified": "2025-05-06T15:09:20.374Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "severity": "high", "epss": 0.01575, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2022-42252", "title": "Apache Tomcat request smuggling via malformed content-length", "description": "If Apache Tomcat 8.5.0 to 8.5.82, 9.0.0-M1 to 9.0.67, 10.0.0-M1 to 10.0.26 or 10.1.0-M1 to 10.1.0 was configured to ignore invalid HTTP headers via setting rejectIllegalHeader to false (the default for 8.5.x only), Tomcat did not reject a request containing an invalid Content-Length header making a request smuggling attack possible if Tomcat was located behind a reverse proxy that also failed to reject the request with the invalid header.", "references": ["https://lists.apache.org/thread/zzcxzvqfdqn515zfs3dxb7n8gty589sq", "https://security.gentoo.org/glsa/202305-37", "https://nvd.nist.gov/vuln/detail/CVE-2022-42252"], "fixes": ["9.0.31-1ubuntu0.5"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2022-29885", "noindex": false, "published": "2022-05-12T00:00:00.000Z", "modified": "2026-10-08T21:13:48.611Z", "cvss": 7.5, "cvss_vector": "", "severity": "high", "epss": 0.73474, "kev": false, "exploits": ["exploitdb"], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2022-29885", "title": "EncryptInterceptor does not provide complete protection on insecure networks", "description": "The documentation of Apache Tomcat 10.1.0-M1 to 10.1.0-M14, 10.0.0-M1 to 10.0.20, 9.0.13 to 9.0.62 and 8.5.38 to 8.5.78 for the EncryptInterceptor incorrectly stated it enabled Tomcat clustering to run over an untrusted network. This was not correct. While the EncryptInterceptor does provide confidentiality and integrity protection, it does not protect against all risks associated with running over any untrusted network, particularly DoS risks.", "references": ["https://lists.apache.org/thread/2b4qmhbcyqvc7dyfpjyx54c03x65vhcv", "https://www.oracle.com/security-alerts/cpujul2022.html", "https://security.netapp.com/advisory/ntap-20220629-0002/"], "fixes": ["9.0.31-1ubuntu0.6"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2022-23181", "noindex": false, "published": "2022-01-27T00:00:00.000Z", "modified": "2024-08-03T03:36:20.071Z", "cvss": 7, "cvss_vector": "", "severity": "high", "epss": 0.00692, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2022-23181", "title": "Local privilege escalation with FileStore", "description": "The fix for bug CVE-2020-9484 introduced a time of check, time of use vulnerability into Apache Tomcat 10.1.0-M1 to 10.1.0-M8, 10.0.0-M5 to 10.0.14, 9.0.35 to 9.0.56 and 8.5.55 to 8.5.73 that allowed a local attacker to perform actions with the privileges of the user that the Tomcat process is using. This issue is only exploitable when Tomcat is configured to persist sessions using the FileStore.", "references": ["https://lists.apache.org/thread/l8x62p3k19yfcb208jo4zrb83k5mfwg9", "https://www.oracle.com/security-alerts/cpuapr2022.html", "https://security.netapp.com/advisory/ntap-20220217-0010/"], "fixes": ["9.0.31-1ubuntu0.6"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2021-41079", "noindex": false, "published": "2021-09-16T14:40:25.000Z", "modified": "2026-10-08T21:13:52.220Z", "cvss": 7.5, "cvss_vector": "", "severity": "high", "epss": 0.07182, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-41079", "title": "Apache Tomcat DoS with unexpected TLS packet", "description": "Apache Tomcat 8.5.0 to 8.5.63, 9.0.0-M1 to 9.0.43 and 10.0.0-M1 to 10.0.2 did not properly validate incoming TLS packets. When Tomcat was configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS, a specially crafted packet could be used to trigger an infinite loop resulting in a denial of service.", "references": ["https://lists.apache.org/thread.html/rccdef0349fdf4fb73a4e4403095446d7fe6264e0a58e2df5c6799434%40%3Cannounce.tomcat.apache.org%3E", "https://lists.debian.org/debian-lts-announce/2021/09/msg00012.html", "https://security.netapp.com/advisory/ntap-20211008-0005/"], "fixes": ["9.0.31-1ubuntu0.2"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2021-33037", "noindex": false, "published": "2021-07-12T14:55:15.000Z", "modified": "2026-10-08T21:13:49.981Z", "cvss": 5.3, "cvss_vector": "", "severity": "medium", "epss": 0.74667, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-33037", "title": "Incorrect Transfer-Encoding handling with HTTP/1.0", "description": "Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding; and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding.", "references": ["https://lists.apache.org/thread.html/r612a79269b0d5e5780c62dfd34286a8037232fec0bc6f1a7e60c9381%40%3Cannounce.tomcat.apache.org%3E", "https://www.oracle.com//security-alerts/cpujul2021.html", "https://lists.apache.org/thread.html/r40f921575aee8d7d34e53182f862c45cbb8f3d898c9d4e865c2ec262%40%3Ccommits.tomee.apache.org%3E"], "fixes": ["9.0.31-1ubuntu0.2"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2021-30640", "noindex": false, "published": "2021-07-12T14:55:13.000Z", "modified": "2026-10-08T21:03:16.938Z", "cvss": 6.5, "cvss_vector": "", "severity": "medium", "epss": 0.09886, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-30640", "title": "Auth weakness in JNDIRealm", "description": "A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65.", "references": ["https://lists.apache.org/thread.html/r59f9ef03929d32120f91f4ea7e6e79edd5688d75d0a9b65fd26d1fe8%40%3Cannounce.tomcat.apache.org%3E", "https://www.oracle.com//security-alerts/cpujul2021.html", "https://lists.debian.org/debian-lts-announce/2021/08/msg00009.html"], "fixes": ["9.0.31-1ubuntu0.2"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2021-25329", "noindex": false, "published": "2021-03-01T12:00:20.000Z", "modified": "2026-10-08T21:03:14.632Z", "cvss": 7, "cvss_vector": "", "severity": "high", "epss": 0.09491, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-25329", "title": "Incomplete fix for CVE-2020-9484", "description": "The fix for CVE-2020-9484 was incomplete. When using Apache Tomcat 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41, 8.5.0 to 8.5.61 or 7.0.0. to 7.0.107 with a configuration edge case that was highly unlikely to be used, the Tomcat instance was still vulnerable to CVE-2020-9494. Note that both the previously published prerequisites for CVE-2020-9484 and the previously published mitigations for CVE-2020-9484 also apply to this issue.", "references": ["https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf%40%3Cannounce.tomcat.apache.org%3E", "https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf%40%3Cdev.tomcat.apache.org%3E", "https://lists.apache.org/thread.html/rfe62fbf9d4c314f166fe8c668e50e5d9dd882a99447f26f0367474bf%40%3Cannounce.apache.org%3E"], "fixes": ["9.0.31-1ubuntu0.2"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2021-25122", "noindex": false, "published": "2021-03-01T12:00:20.000Z", "modified": "2026-10-08T21:13:48.044Z", "cvss": 7.5, "cvss_vector": "", "severity": "high", "epss": 0.18114, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-25122", "title": "Apache Tomcat h2c request mix-up", "description": "When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8.5.0 to 8.5.61 could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A's request.", "references": ["https://lists.apache.org/thread.html/r7b95bc248603360501f18c8eb03bb6001ec0ee3296205b34b07105b7%40%3Cannounce.tomcat.apache.org%3E", "https://lists.apache.org/thread.html/r7b95bc248603360501f18c8eb03bb6001ec0ee3296205b34b07105b7%40%3Cusers.tomcat.apache.org%3E", "https://lists.apache.org/thread.html/r7b95bc248603360501f18c8eb03bb6001ec0ee3296205b34b07105b7%40%3Cdev.tomcat.apache.org%3E"], "fixes": ["9.0.31-1ubuntu0.2"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2020-17527", "noindex": false, "published": "2020-12-03T18:30:14.000Z", "modified": "2026-10-08T21:13:51.170Z", "cvss": 7.5, "cvss_vector": "", "severity": "high", "epss": 0.24622, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2020-17527", "title": "Apache Tomcat: Request header mix-up between HTTP/2 streams", "description": "While investigating bug 64830 it was discovered that Apache Tomcat 10.0.0-M1 to 10.0.0-M9, 9.0.0-M1 to 9.0.39 and 8.5.0 to 8.5.59 could re-use an HTTP request header value from the previous stream received on an HTTP/2 connection for the request associated with the subsequent stream. While this would most likely lead to an error and the closure of the HTTP/2 connection, it is possible that information could leak between requests.", "references": ["https://lists.apache.org/thread.html/rce5ac9a40173651d540babce59f6f3825f12c6d4e886ba00823b11e5%40%3Cannounce.tomcat.apache.org%3E", "https://lists.apache.org/thread.html/r8a227ac6a755a6406c1cc47dd48800e973d4cf13fe7fe68ac59c679c%40%3Cdev.tomcat.apache.org%3E", "https://lists.apache.org/thread.html/raa0e9ad388c1e6fd1e301b5e080f9439f64cb4178119a86a4801cc53%40%3Cdev.tomcat.apache.org%3E"], "fixes": ["9.0.31-1ubuntu0.2"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2020-13935", "noindex": false, "published": "2020-07-14T15:00:21.000Z", "modified": "2026-10-08T21:03:33.405Z", "cvss": 7.5, "cvss_vector": "", "severity": "high", "epss": 0.86608, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2020-13935", "title": "CVE-2020-13935", "description": "The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.", "references": ["https://lists.apache.org/thread.html/rd48c72bd3255bda87564d4da3791517c074d94f8a701f93b85752651%40%3Cannounce.tomcat.apache.org%3E", "https://www.debian.org/security/2020/dsa-4727", "https://lists.debian.org/debian-lts-announce/2020/07/msg00017.html"], "fixes": ["9.0.31-1ubuntu0.1"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2020-13934", "noindex": false, "published": "2020-07-14T14:59:11.000Z", "modified": "2026-10-08T21:13:57.516Z", "cvss": 7.5, "cvss_vector": "", "severity": "high", "epss": 0.64124, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2020-13934", "title": "CVE-2020-13934", "description": "An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service.", "references": ["https://lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb88e31b0ca9c29652ee4f962e%40%3Cannounce.tomcat.apache.org%3E", "https://www.debian.org/security/2020/dsa-4727", "https://lists.debian.org/debian-lts-announce/2020/07/msg00017.html"], "fixes": ["9.0.31-1ubuntu0.1"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2020-11996", "noindex": false, "published": "2020-06-26T16:27:20.000Z", "modified": "2026-10-08T21:13:56.997Z", "cvss": 7.5, "cvss_vector": "", "severity": "high", "epss": 0.26699, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2020-11996", "title": "CVE-2020-11996", "description": "A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.", "references": ["https://lists.apache.org/thread.html/r5541ef6b6b68b49f76fc4c45695940116da2bcbe0312ef204a00a2e0%40%3Cannounce.tomcat.apache.org%3E", "https://lists.apache.org/thread.html/ra7092f7492569b39b04ec0decf52628ba86c51f15efb38f5853e2760%40%3Cnotifications.ofbiz.apache.org%3E", "https://lists.apache.org/thread.html/rb4ee49ecc4c59620ffd5e66e84a17e526c2c3cfa95d0cd682d90d338%40%3Cnotifications.ofbiz.apache.org%3E"], "fixes": ["9.0.31-1ubuntu0.1"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2020-9484", "noindex": false, "published": "2020-05-20T18:26:41.000Z", "modified": "2026-10-08T21:03:14.884Z", "cvss": 7, "cvss_vector": "", "severity": "high", "epss": 0.5552, "kev": false, "exploits": ["nuclei"], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2020-9484", "title": "CVE-2020-9484", "description": "When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a) an attacker is able to control the contents and name of a file on the server; and b) the server is configured to use the PersistenceManager with a FileStore; and c) the PersistenceManager is configured with sessionAttributeValueClassNameFilter=\"null\" (the default unless a SecurityManager is used) or a sufficiently lax filter to allow the attacker provided object to be deserialized; and d) the attacker knows the relative file path from the storage location used by FileStore to the file the attacker has control over; then, us", "references": ["https://lists.apache.org/thread.html/rf70f53af27e04869bdac18b1fc14a3ee529e59eb12292c8791a77926%40%3Cusers.tomcat.apache.org%3E", "https://lists.debian.org/debian-lts-announce/2020/05/msg00020.html", "https://lists.apache.org/thread.html/r26950738f4b4ca2d256597cf391d52d3450fa665c297ea5ca38f5469%40%3Cusers.tomcat.apache.org%3E"], "fixes": ["9.0.31-1ubuntu0.1"], "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}]}], "total": 20, "unknown_count": 0, "release_unconfirmed": false, "page": 1, "pages": 1, "filtered": false, "noindex": false, "filters": {}, "page_size": 20, "products": [{"name": "tomcat9", "path": "vulns/ubuntu-20.04-lts/tomcat9", "ecosystem": "Ubuntu:20.04:LTS"}], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}, {"name": "web", "path": "vulns/stack/web", "slug": "web"}, {"name": "php", "path": "vulns/stack/php", "slug": "php"}, {"name": "python", "path": "vulns/stack/python", "slug": "python"}, {"name": "node", "path": "vulns/stack/node", "slug": "node"}, {"name": "database", "path": "vulns/stack/database", "slug": "database"}, {"name": "containers", "path": "vulns/stack/containers", "slug": "containers"}, {"name": "network", "path": "vulns/stack/network", "slug": "network"}, {"name": "applications", "path": "vulns/stack/applications", "slug": "applications"}], "versions": [], "stats": {"recent": 0, "kev": 0}, "lastmod": "2026-10-14T23:51:51.782Z", "early_advisories": [], "license": "You may freely use the PatchFirst selection and our additions (priorities, early warnings, texts, summaries and aggregates) for your own purposes, including internal business use. Resale, commercial distribution and bulk mirroring of this selection or these additions require a written agreement with the operator. Whenever you use or publish the selection or our additions, credit PatchFirst (https://patchfirst.dev/vulns/) with this link to the regional feed page. Original records from open sources remain subject to their respective licenses and terms. These conditions do not restrict your rights to the original data, which you can obtain directly from those sources.", "terms_url": "https://patchfirst.dev/vulns/#feed-terms", "attribution": {"name": "PatchFirst", "url": "https://patchfirst.dev/vulns/"}, "source_changes": "Records are selected, normalized and combined by PatchFirst; summaries and translations may be added. News is credited with a link to the original source in each entry.", "sources": [{"id": "cve", "name": "CVE List / CVE.org", "url": "https://www.cve.org/", "license": "CVE Terms of Use", "terms_url": "https://www.cve.org/Legal/TermsOfUse", "notice": "Copyright © 1999–2021, The MITRE Corporation. LICENSE Submissions : For all materials you submit to the Common Vulnerabilities and Exposures (CVE™), you hereby grant to The MITRE Corporation (MITRE) and all CVE Numbering Authorities (CNAs) a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute such materials and derivative works. Unless required by applicable law or agreed to in writing, you provide such materials on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. CVE Usage : MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. DISCLAIMERS ALL DOCUMENTS AND THE INFORMATION CONTAINED THEREIN PROVIDED BY MITRE ARE PROVIDED ON AN \"AS IS\" BASIS AND THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE MITRE CORPORATION, ITS BOARD OF TRUSTEES, OFFICERS, AGENTS, AND EMPLOYEES, DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION THEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE."}, {"id": "osv", "name": "OSV", "url": "https://osv.dev/", "terms_url": "https://google.github.io/osv.dev/data/", "terms": "Upstream licenses vary; see the source catalog."}, {"id": "kev", "name": "CISA KEV", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "license": "CC0-1.0", "terms_url": "https://github.com/cisagov/kev-data/blob/develop/LICENSE"}, {"id": "epss", "name": "FIRST EPSS", "url": "https://www.first.org/epss/", "terms_url": "https://www.first.org/epss/faq", "terms": "Free public scores; attribution requested (FIRST EPSS, scores generated by Empirical Security)."}, {"id": "github-advisory", "name": "GitHub Advisory Database", "url": "https://github.com/advisories", "license": "CC-BY-4.0", "terms_url": "https://github.com/github/advisory-database/blob/main/LICENSE.md"}, {"id": "exploitdb", "name": "Exploit-DB", "url": "https://www.exploit-db.com/", "license": "GPL-2.0", "terms_url": "https://gitlab.com/exploit-database/exploitdb/-/blob/main/LICENSE.md"}, {"id": "metasploit", "name": "Metasploit", "url": "https://github.com/rapid7/metasploit-framework", "license": "BSD-3-Clause", "terms_url": "https://github.com/rapid7/metasploit-framework/blob/master/LICENSE", "notice": "Copyright (c) 2006-2026, Rapid7, Inc.\nLicense: BSD-3-clause\n Redistribution and use in source and binary forms, with or without modification,\n are permitted provided that the following conditions are met:\n .\n * Redistributions of source code must retain the above copyright notice,\n this list of conditions and the following disclaimer.\n .\n * Redistributions in binary form must reproduce the above copyright notice,\n this list of conditions and the following disclaimer in the documentation\n and/or other materials provided with the distribution.\n .\n * Neither the name of Rapid7, Inc. nor the names of its contributors\n may be used to endorse or promote products derived from this software\n without specific prior written permission.\n .\n THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND\n ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR\n ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\n LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON\n ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\n SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."}, {"id": "nuclei", "name": "Nuclei Templates", "url": "https://github.com/projectdiscovery/nuclei-templates", "license": "MIT", "terms_url": "https://github.com/projectdiscovery/nuclei-templates/blob/main/LICENSE.md", "notice": "MIT License\n\nCopyright (c) 2025 ProjectDiscovery, Inc.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE."}, {"id": "linux-kernel", "name": "Linux kernel releases", "url": "https://www.kernel.org/", "license": "CC-BY-SA-4.0", "terms_url": "https://www.kernel.org/legal.html", "notice": "Copyright (C) 1997-2014 by The Linux Kernel Organization, Inc."}]}