{"kind": "product", "path": "vulns/debian-12/pypy3", "name": "pypy3", "product": "pypy3", "ecosystem": "Debian:12", "items": [{"id": "CVE-2026-114583", "noindex": false, "published": "2026-10-22T20:57:36.019Z", "modified": "2026-10-23T00:36:58.472Z", "cvss": 6.9, "cvss_vector": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N", "severity": "medium", "epss": 0.00207, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-114583", "title": "tar filter allows writing outside destination via empty-named symlink", "description": "tarfile.tar_filter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended extraction directory. This allowed a malicious tar archive to cause tarfile.extractall() with filter=\"tar\" to write files outside the destination directory, subject to the permissions of the extracting process.\n\nThis is the tarfile.tar_filter counterpart of CVE-2026-7774, which covered tarfile.data_filter.", "references": ["https://github.com/python/cpython/pull/160098", "https://github.com/python/cpython/issues/160097", "https://mail.python.org/archives/list/security-announce@python.org/thread/43JOWPRAV5DI3VZ4FUEUAZOHCATXXOCK/"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-19553", "noindex": false, "published": "2026-09-30T16:17:39.368Z", "modified": "2026-10-16T18:33:12.475Z", "cvss": 7.6, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "severity": "high", "epss": 0.00401, "kev": false, "exploits": ["public-poc"], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-19553", "title": "SSLContext.wrap_bio() missing validation of server_hostname parameter", "description": "ssl.SSLContext.wrap_bio() didn't require the server_hostname argument\nto not be None if ssl.SSLContext.check_hostname was set. Due to a\nmissing parameter check in SSLObject, if the server_hostname argument\nisn't supplied then hostname verification would be silently skipped.\n\n\nThis defect could lead to programs where certificate hostname verification\n*appeared* to be succeeding with SSLContext.check_hostname = True and no\nValueError being raised due to misconfiguration.\n\n\nIf the program passes a server_hostname value that isn't an empty string\nor None to any of these APIs then certificate hostname verification\nproceeds as expected and the prog", "references": ["https://github.com/python/cpython/pull/158503", "https://github.com/python/cpython/issues/156793", "https://mail.python.org/archives/list/security-announce@python.org/thread/QNZRG3YOAMTHDCMVCICXGY6YEFPY2VDL/"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-19445", "noindex": false, "published": "2026-09-30T16:16:04.923Z", "modified": "2026-10-03T00:36:46.398Z", "cvss": 9.2, "cvss_vector": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N", "severity": "critical", "epss": 0.00429, "kev": false, "exploits": ["public-poc"], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-19445", "title": "Use-after-free of a server-side SSLContext when sni_callback switches contexts", "description": "A remote, unauthenticated TLS client can make a server crash or call\nthrough a freed pointer if its sni_callback assigns a different context to\nSSLSocket.context (the documented way to select a certificate per server\nname) and nothing else keeps the original ssl.SSLContext alive. Typical\ncases are servers that create an SSLContext per connection or replace it\nwhile connections are open; servers that wrap their listening socket with\nit are not affected.\n\n\nMitigation: keep a reference to every SSLContext that sets sni_callback for\nthe lifetime of the server. TLS clients are not affected.", "references": ["https://github.com/python/cpython/pull/158504", "https://mail.python.org/archives/list/security-announce@python.org/thread/QMQIUQB6WGGC3MI7I3WKQXOYOBDSPPS3/", "https://github.com/python/cpython/issues/156293"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-12345", "noindex": false, "published": "2026-09-29T17:46:01.811Z", "modified": "2026-10-22T00:37:01.025Z", "cvss": 5.9, "cvss_vector": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N", "severity": "medium", "epss": 0.0018, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-12345", "title": "Race condition in tempfile.TemporaryDirectory cleanup allows deleting files outside the temporary directory", "description": "The cleanup of tempfile.TemporaryDirectory is vulnerable to a race condition. An attacker who can modify the tree during cleanup can replace a directory with a symbolic link, causing files outside of the temporary directory to be deleted or have their permissions and file flags reset, with the privileges of the process performing the cleanup. Note that platforms where shutil.rmtree.avoids_symlink_attacks is false, remain affected, and file flags may still be reset outside of the tree on all platforms.", "references": ["https://github.com/python/cpython/pull/157580", "https://github.com/python/cpython/issues/157579", "https://github.com/python/cpython/commit/5c20517a4fc56683efe63a7751020db9573f538d"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-76875", "noindex": false, "published": "2026-09-29T12:45:19.797Z", "modified": "2026-10-02T12:07:30.652Z", "cvss": 6.3, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N", "severity": "medium", "epss": 0.0024, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-76875", "title": "PyPy pyexpat ExternalEntityParserCreate Use-After-Free", "description": "PyPy before versions 3.11.16 and 3.12.14 contains a use-after-free vulnerability in the pyexpat module's ExternalEntityParserCreate function that allows attackers to corrupt memory by supplying a crafted XML document to applications that create external-entity sub-parsers without retaining a reference to the parent parser. The child parser retains a raw C back-pointer to the parent parser struct while PyPy's tracing garbage collector can free the parent's C struct, causing bundled libexpat to dereference the freed pointer on every parsed token, producing memory corruption.", "references": ["https://doc.pypy.org/release-v8.0.0.html", "https://github.com/pypy/pypy/releases/tag/release-pypy3.12-v8.0.0", "https://github.com/pypy/pypy/releases/tag/release-pypy3.11-v8.0.0"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-15806", "noindex": false, "published": "2026-08-18T15:50:57.983Z", "modified": "2026-10-02T00:39:20.429Z", "cvss": 6, "cvss_vector": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "severity": "medium", "epss": 0.00528, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-15806", "title": "`HTTPPasswordMgr` can send saved HTTPS credentials via HTTP because of incorrect scheme matching", "description": "The HTTPPasswordMgr class in the urllib.request module, along with its subclasses HTTPPasswordMgrWithDefaultRealm and HTTPPasswordMgrWithPriorAuth, did not take the URL scheme into account when matching stored credentials against a requested URL. Credentials added for an https:// URL were also used for requests to the same host over http://, so an attacker able to redirect or downgrade a client to plain HTTP (for example, via an HTTPS-to-HTTP redirect or an on-path position) could capture credentials in cleartext. Credentials added for http:// URLs could likewise be sent over https://.\n\nCredential matching is now scoped by URL scheme. Credent", "references": ["https://github.com/python/cpython/issues/155694", "https://github.com/python/cpython/pull/155696", "https://mail.python.org/archives/list/security-announce@python.org/thread/3OKPE5S75KDNA7FY7AI3PL2MXM2X5RB3/"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-17084", "noindex": false, "published": "2026-08-18T13:57:31.876Z", "modified": "2026-10-02T00:39:09.384Z", "cvss": 6, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N", "severity": "medium", "epss": 0.00734, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-17084", "title": "stringprep.map_table_b2() deviates from RFC 3454 Table B.2", "description": "The \"stringprep\" module didn't process characters from RFC 3454 tables \nB.2 or B.3 correctly: the latest Unicode codepoint attributes were used \ninstead of the specified Unicode 3.2.0. This behavior would cause \nmismatches when processing domain names using IDNA 2003 (the \"idna\" \ncodec) and the in_table_b2() function of the \"stringprep\" module. This \nonly affects domain names containing characters that were not previously\n registered or had their Unicode attributes such as case-folding \nbehavior updated since Unicode 3.2.0.", "references": ["https://github.com/python/cpython/pull/155293", "https://github.com/python/cpython/issues/155292", "https://mail.python.org/archives/list/security-announce@python.org/thread/EUHHTC6EV7HCLSUHP25C5VHSV4V2MUZN/"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-18503", "noindex": false, "published": "2026-08-10T13:45:31.618Z", "modified": "2026-10-14T00:34:46.583Z", "cvss": 2.4, "cvss_vector": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N", "severity": "low", "epss": 0.00119, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-18503", "title": "Super-linear CPU usage for unbounded input to csv.Sniffer.sniff()", "description": "Attacker-controlled CSV samples can trigger super-linear \nregular-expression work during dialect sniffing and consume significant \nCPU when applications pass unbounded input to csv.Sniffer.sniff().", "references": ["https://mail.python.org/archives/list/security-announce@python.org/thread/KQ7NBMCPAZJHRROQXJQE4GMXGLD5KHBS/", "https://github.com/python/cpython/pull/153694", "https://github.com/python/cpython/issues/98820"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-6879", "noindex": false, "published": "2026-07-28T13:46:30.650Z", "modified": "2026-08-13T00:27:08.214Z", "cvss": 2, "cvss_vector": "CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N", "severity": "low", "epss": 0.00369, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-6879", "title": "Quadratic Behavior in xml.etree.ElementPath Index Predicates", "description": "`Element.findall()` and fully-consumed `Element.iterfind()` exhibit `O(n^2)` time complexity when using XPath index predicates (e.g. `[1]`, `[last()]`, `[last()-N]`) on XML documents with many same-tag siblings. `Element.find()` is only affected when the first match is near the end  of the sibling list, such as with `[last()]` or `[last()-N]`;  `.//item[1]` short-circuits after the first match.", "references": ["https://github.com/python/cpython/pull/152676", "https://github.com/python/cpython/issues/152674", "https://mail.python.org/archives/list/security-announce@python.org/thread/7YMZ6DDZVR26TJJBVO3RDNBAVGHNYAKR/"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-11972", "noindex": false, "published": "2026-06-23T22:02:45.434Z", "modified": "2026-08-13T00:28:46.899Z", "cvss": 8.2, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "severity": "high", "epss": 0.00715, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-11972", "title": "tarfile opened in streaming mode mishandles EOF", "description": "When using the \"tarfile\" module with a file opened in \"streaming mode\" (mode=\"r|\") the tarfile module did not properly handle EOF, making archive parsing take exponentially longer.", "references": ["https://github.com/python/cpython/issues/151981", "https://github.com/python/cpython/pull/151982", "https://mail.python.org/archives/list/security-announce@python.org/thread/AXPSKKTSRKXTTJULW3XSIC74WZNAAPPB/"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-0864", "noindex": false, "published": "2026-06-23T17:42:01.947Z", "modified": "2026-08-13T00:29:03.258Z", "cvss": 4.1, "cvss_vector": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N", "severity": "medium", "epss": 0.00126, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-0864", "title": "Configuration Injection via Carriage Return (\\r) in write() method", "description": "When using the \"configparser\" module to write configuration files\ncontaining multi-line text values with carriage return characters (\\r) the\nresulting file could be injected with unexpected keys and values if the\nattacker controls the written value.", "references": ["https://github.com/python/cpython/pull/151559", "https://mail.python.org/archives/list/security-announce@python.org/thread/CV4NE6AFCRJL7XQOHX7J5TSDHUWVWGJS/", "https://github.com/python/cpython/issues/143927"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-8328", "noindex": false, "published": "2026-05-13T20:14:33.751Z", "modified": "2026-08-13T00:26:54.111Z", "cvss": 5.9, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N", "severity": "medium", "epss": 0.00457, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-8328", "title": "FTP PASV SSRF, ftpcp() does not use actual peer address, trusts server-supplied PASV host address", "description": "The ftpcp() function in Lib/ftplib.py was not updated when \nCVE-2021-4189 was fixed. While makepasv() was patched to replace \nserver-supplied PASV host addresses with the actual peer address \n(getpeername()[0]), ftpcp() still calls parse227() directly and passes \nthe raw attacker-controllable IP address and port to target.sendport(). This patch is related to CVE-2021-4189.", "references": ["https://github.com/python/cpython/issues/87451", "https://github.com/python/cpython/pull/149648", "https://mail.python.org/archives/list/security-announce@python.org/thread/ITF2BAPBQEPYK3LDMPRSY435JGNHYNDP/"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-6019", "noindex": false, "published": "2026-04-22T19:28:08.720Z", "modified": "2026-06-10T18:58:07.798Z", "cvss": 2.1, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N", "severity": "low", "epss": 0.00211, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-6019", "title": "BaseCookie.js_output() does not neutralize embedded characters", "description": "http.cookies.Morsel.js_output() returns an inline <script> snippet and only escapes \" for JavaScript string context. It does not neutralize the HTML parser-sensitive sequence </script> inside the generated script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie value.", "references": ["https://github.com/python/cpython/pull/148848", "https://github.com/python/cpython/issues/90309", "https://mail.python.org/archives/list/security-announce@python.org/thread/IVNWGV2BBNC3RHQAFS22UP4DY56SAXX3/"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-1502", "noindex": false, "published": "2026-04-10T17:54:44.121Z", "modified": "2026-08-13T00:28:30.757Z", "cvss": 5.7, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N", "severity": "medium", "epss": 0.00562, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-1502", "title": "HTTP client proxy tunnel headers not validated for CR/LF", "description": "CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host.", "references": ["https://github.com/python/cpython/pull/146212", "https://github.com/python/cpython/issues/146211", "https://mail.python.org/archives/list/security-announce@python.org/thread/2IVPAEQWUJBCTQZEJEVTYCIKSMQPGRZ3/"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-4519", "noindex": false, "published": "2026-03-20T15:08:32.576Z", "modified": "2026-08-13T00:27:28.648Z", "cvss": 7, "cvss_vector": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "severity": "high", "epss": 0.00314, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-4519", "title": "webbrowser.open() allows leading dashes in URLs", "description": "The webbrowser.open() API would accept leading dashes in the URL which \ncould be handled as command line options for certain web browsers. New \nbehavior rejects leading dashes. Users are recommended to sanitize URLs \nprior to passing to webbrowser.open().", "references": ["https://github.com/python/cpython/pull/143931", "https://github.com/python/cpython/issues/143930", "https://mail.python.org/archives/list/security-announce@python.org/thread/AY5NDSS433JK56Q7Q5IS7B37QFZVVOUS/"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-3479", "noindex": false, "published": "2026-03-18T18:13:42.288Z", "modified": "2026-04-07T22:01:35.724Z", "cvss": 0, "cvss_vector": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N", "severity": "low", "epss": 0.00248, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-3479", "title": "pkgutil.get_data() does not enforce documented restrictions", "description": "DISPUTED: The project has clarified that the documentation was incorrect, and that pkgutil.get_data() has the same security model as open(). The documentation has been updated to clarify this point. There is no vulnerability in the function if following the intended security model.\n\npkgutil.get_data() did not validate the resource argument as documented, allowing path traversals.", "references": ["https://github.com/python/cpython/pull/146122", "https://mail.python.org/archives/list/security-announce@python.org/thread/WYLLVQOOCKGK73JM7Z7ZSNOJC4N7BAWY/", "https://github.com/python/cpython/issues/146121"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2025-69534", "noindex": false, "published": "2026-03-05T00:00:00.000Z", "modified": "2026-09-07T12:05:12.276Z", "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": 0.00602, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2025-69534", "title": "CVE-2025-69534", "description": "Python-Markdown version 3.8 contain a vulnerability where malformed HTML-like sequences can cause html.parser.HTMLParser to raise an unhandled AssertionError during Markdown parsing. Because Python-Markdown does not catch this exception, any application that processes attacker-controlled Markdown may crash. This enables remote, unauthenticated Denial of Service in web applications, documentation systems, CI/CD pipelines, and any service that renders untrusted Markdown. The issue was acknowledged by the vendor and fixed in version 3.8.1. This issue causes a remote Denial of Service in any application parsing untrusted Markdown, and can lead to", "references": ["https://github.com/Python-Markdown/markdown/issues/1534", "https://github.com/Python-Markdown/markdown", "https://github.com/Python-Markdown/markdown/actions/runs/15736122892"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-2297", "noindex": false, "published": "2026-03-04T22:10:43.297Z", "modified": "2026-08-13T00:28:17.928Z", "cvss": 5.7, "cvss_vector": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N", "severity": "medium", "epss": 0.00206, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-2297", "title": "SourcelessFileLoader does not use io.open_code()", "description": "The import hook in CPython that handles legacy *.pyc files (SourcelessFileLoader) is incorrectly handled in FileLoader (a base class) and so does not use io.open_code() to read the .pyc files. sys.audit handlers for this audit event therefore do not fire.", "references": ["https://github.com/python/cpython/issues/145506", "https://github.com/python/cpython/pull/145507", "https://github.com/python/cpython/commit/482d6f8bdba9da3725d272e8bb4a2d25fb6a603e"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2026-1299", "noindex": false, "published": "2026-01-23T16:27:13.346Z", "modified": "2026-03-03T14:43:35.655Z", "cvss": 6, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N", "severity": "medium", "epss": 0.00573, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-1299", "title": "email BytesGenerator header injection due to unquoted newlines", "description": "The \nemail module, specifically the \"BytesGenerator\" class, didn’t properly quote newlines for email headers when \nserializing an email message allowing for header injection when an email\n is serialized. This is only applicable if using \"LiteralHeader\" writing headers that don't respect email folding rules, the new behavior will reject the incorrectly folded headers in \"BytesGenerator\".", "references": ["https://github.com/python/cpython/pull/144126", "https://github.com/python/cpython/issues/144125", "https://cve.org/CVERecord?id=CVE-2024-6923"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}, {"id": "CVE-2025-12781", "noindex": false, "published": "2026-01-21T19:34:47.979Z", "modified": "2026-01-22T20:12:56.421Z", "cvss": 6.3, "cvss_vector": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N", "severity": "medium", "epss": 0.00561, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2025-12781", "title": "base64.b64decode() always accepts \"+/\" characters, despite setting altchars", "description": "When passing data to the b64decode(), standard_b64decode(), and urlsafe_b64decode() functions in the \"base64\" module the characters \"+/\" will always be accepted, regardless of the value of \"altchars\" parameter, typically used to establish an \"alternative base64 alphabet\" such as the URL safe alphabet. This behavior matches what is recommended in earlier base64 RFCs, but newer RFCs now recommend either dropping characters outside the specified base64 alphabet or raising an error. The old behavior has the possibility of causing data integrity issues.\n\n\n\n\nThis behavior can only be insecure if your application uses an alternate base64 alphabet (w", "references": ["https://github.com/python/cpython/pull/141128", "https://github.com/python/cpython/issues/125346", "https://mail.python.org/archives/list/security-announce@python.org/thread/KRI7GC6S27YV5NJ4FPDALS2WI5ENAFJ6/"], "fixes": [], "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}]}], "total": 71, "unknown_count": 0, "release_unconfirmed": false, "page": 1, "pages": 4, "filtered": false, "noindex": false, "filters": {}, "page_size": 20, "products": [{"name": "pypy3", "path": "vulns/debian-12/pypy3", "ecosystem": "Debian:12"}], "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": 5, "kev": 0}, "lastmod": "2026-10-23T00:36:58.472Z", "early_advisories": [], "license": "Sie dürfen die Auswahl von PatchFirst und unsere Ergänzungen (Prioritäten, Frühwarnungen, Texte, Zusammenfassungen und Aggregate) für eigene Zwecke einschließlich interner geschäftlicher Aufgaben frei nutzen. Weiterverkauf, kommerzielle Verbreitung und massenhafte Spiegelung dieser Auswahl oder Ergänzungen erfordern eine schriftliche Vereinbarung mit dem Betreiber. Nennen Sie bei jeder Nutzung oder Veröffentlichung der Auswahl oder unserer Ergänzungen PatchFirst (https://patchfirst.dev/vulns/) mit diesem Link zur Feedseite Ihrer Region als Quelle. Originaleinträge aus offenen Quellen unterliegen weiterhin ihren jeweiligen Lizenzen und Bedingungen. Diese Bedingungen beschränken Ihre Rechte an den Originaldaten nicht, die Sie direkt bei den Quellen beziehen können.", "terms_url": "https://patchfirst.dev/de/vulns/#feed-terms", "attribution": {"name": "PatchFirst", "url": "https://patchfirst.dev/vulns/"}, "source_changes": "PatchFirst wählt Einträge aus, normalisiert und kombiniert sie; Zusammenfassungen und Übersetzungen können hinzukommen. Nachrichten werden im jeweiligen Eintrag mit einem Link zur Originalquelle belegt.", "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": "Die Lizenzen der Ursprungsdatenbanken unterscheiden sich; siehe Quellenkatalog."}, {"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": "Frei zugängliche Bewertungen; Quellenangabe erbeten (FIRST EPSS, Bewertungen von 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. 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