{"kind": "product", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "name": "ruby2.7", "product": "ruby2.7", "ecosystem": "Ubuntu:20.04:LTS", "items": [{"id": "CVE-2025-27221", "noindex": false, "published": "2025-03-03T00:00:00.000Z", "modified": "2025-11-03T21:13:26.685Z", "cvss": 3.2, "cvss_vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N", "severity": "low", "epss": 0.00511, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2025-27221", "title": "CVE-2025-27221", "description": "In the URI gem before 1.0.3 for Ruby, the URI handling methods (URI.join, URI#merge, URI#+) have an inadvertent leakage of authentication credentials because userinfo is retained even after changing the host.", "references": ["https://hackerone.com/reports/2957667", "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/uri/CVE-2025-27221.yml", "https://lists.debian.org/debian-lts-announce/2025/05/msg00015.html"], "fixes": ["2.7.0-5ubuntu1.18"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2025-27220", "noindex": false, "published": "2025-03-03T00:00:00.000Z", "modified": "2025-11-03T21:13:25.250Z", "cvss": 4, "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L", "severity": "medium", "epss": 0.0076, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2025-27220", "title": "CVE-2025-27220", "description": "In the CGI gem before 0.4.2 for Ruby, a Regular Expression Denial of Service (ReDoS) vulnerability exists in the Util#escapeElement method.", "references": ["https://hackerone.com/reports/2890322", "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/cgi/CVE-2025-27220.yml", "https://lists.debian.org/debian-lts-announce/2025/03/msg00008.html"], "fixes": ["2.7.0-5ubuntu1.18"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2025-27219", "noindex": false, "published": "2025-03-03T00:00:00.000Z", "modified": "2025-11-03T21:13:23.842Z", "cvss": 5.8, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L", "severity": "medium", "epss": 0.00849, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2025-27219", "title": "CVE-2025-27219", "description": "In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential Denial of Service (DoS) vulnerability. The method does not impose any limit on the length of the raw cookie value it processes. This oversight can lead to excessive resource consumption when parsing extremely large cookies.", "references": ["https://hackerone.com/reports/2936778", "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/cgi/CVE-2025-27219.yml", "https://lists.debian.org/debian-lts-announce/2025/03/msg00008.html"], "fixes": ["2.7.0-5ubuntu1.18"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "USN-7256-2", "noindex": true, "published": "2025-02-13T02:49:16Z", "modified": "2026-04-22T10:55:04.605848Z", "cvss": null, "cvss_vector": "", "severity": "unknown", "epss": null, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/usn-7256-2", "title": "ruby2.7 regression", "description": "USN-7256-1 fixed vulnerabilities in Ruby. The update introduced a minor\nregression. This update fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that Ruby incorrectly handled parsing of an XML document\n that has specific XML characters in an attribute value using REXML gem. An\n attacker could use this issue to cause Ruby to crash, resulting in a\n denial of service.\n", "references": ["https://ubuntu.com/security/notices/USN-7256-2", "https://launchpad.net/bugs/2097527", "https://osv.dev/vulnerability/USN-7256-2"], "fixes": ["2.7.0-5ubuntu1.17"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-49761", "noindex": false, "published": "2024-10-28T14:10:23.212Z", "modified": "2025-11-03T20:41:10.439Z", "cvss": 6.6, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U", "severity": "medium", "epss": 0.0142, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-49761", "title": "REXML ReDoS vulnerability", "description": "REXML is an XML toolkit for Ruby. The REXML gem before 3.3.9 has a ReDoS vulnerability when it parses an XML that has many digits between &# and x...; in a hex numeric character reference (&#x...;). This does not happen with Ruby 3.2 or later. Ruby 3.1 is the only affected maintained Ruby. The REXML gem 3.3.9 or later include the patch to fix the vulnerability.", "references": ["https://github.com/ruby/rexml/security/advisories/GHSA-2rxp-v6pw-ch6m", "https://github.com/ruby/rexml/commit/ce59f2eb1aeb371fe1643414f06618dbe031979f", "https://www.ruby-lang.org/en/news/2024/10/28/redos-rexml-cve-2024-49761"], "fixes": ["2.7.0-5ubuntu1.15"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-43398", "noindex": false, "published": "2024-08-22T14:14:03.588Z", "modified": "2025-11-03T20:38:50.990Z", "cvss": 5.9, "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "medium", "epss": 0.01205, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-43398", "title": "REXML denial of service vulnerability", "description": "REXML is an XML toolkit for Ruby. The REXML gem before 3.3.6 has a DoS vulnerability when it parses an XML that has many deep elements that have same local name attributes. If you need to parse untrusted XMLs with tree parser API like REXML::Document.new, you may be impacted to this vulnerability. If you use other parser APIs such as stream parser API and SAX2 parser API, this vulnerability is not affected. The REXML gem 3.3.6 or later include the patch to fix the vulnerability.", "references": ["https://github.com/ruby/rexml/security/advisories/GHSA-vmwr-mc7x-5vc3", "https://github.com/ruby/rexml/releases/tag/v3.3.6", "https://security.netapp.com/advisory/ntap-20250103-0006/"], "fixes": ["2.7.0-5ubuntu1.16"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-41946", "noindex": false, "published": "2024-08-01T14:22:14.014Z", "modified": "2025-11-03T20:38:34.071Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "severity": "medium", "epss": 0.01192, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-41946", "title": "REXML DoS vulnerability", "description": "REXML is an XML toolkit for Ruby. The REXML gem 3.3.2 has a DoS vulnerability when it parses an XML that has many entity expansions with SAX2 or pull parser API. The REXML gem 3.3.3 or later include the patch to fix the vulnerability.", "references": ["https://github.com/ruby/rexml/security/advisories/GHSA-5866-49gr-22v4", "https://github.com/ruby/rexml/commit/033d1909a8f259d5a7c53681bcaf14f13bcf0368", "https://www.ruby-lang.org/en/news/2008/08/23/dos-vulnerability-in-rexml"], "fixes": ["2.7.0-5ubuntu1.15"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-41123", "noindex": false, "published": "2024-08-01T14:18:43.611Z", "modified": "2025-11-03T20:38:32.688Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "severity": "medium", "epss": 0.01283, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-41123", "title": "REXML DoS vulnerability", "description": "REXML is an XML toolkit for Ruby. The REXML gem before 3.3.2 has some DoS vulnerabilities when it parses an XML that has many specific characters such as whitespace character, `>]` and `]>`. The REXML gem 3.3.3 or later include the patches to fix these vulnerabilities.", "references": ["https://github.com/ruby/rexml/security/advisories/GHSA-r55c-59qm-vjw6", "https://github.com/ruby/rexml/security/advisories/GHSA-4xqq-m2hx-25v8", "https://github.com/ruby/rexml/security/advisories/GHSA-vg3r-rm7w-2xgh"], "fixes": ["2.7.0-5ubuntu1.16"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-39908", "noindex": false, "published": "2024-07-16T17:28:07.372Z", "modified": "2025-11-03T20:38:21.548Z", "cvss": 4.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "severity": "medium", "epss": 0.01493, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-39908", "title": "Denial of service in REXML", "description": " REXML is an XML toolkit for Ruby. The REXML gem before 3.3.1 has some DoS vulnerabilities when it parses an XML that has many specific characters such as `<`, `0` and `%>`. If you need to parse untrusted XMLs, you many be impacted to these vulnerabilities. The REXML gem 3.3.2 or later include the patches to fix these vulnerabilities. Users are advised to upgrade. Users unable to upgrade should avoid parsing untrusted XML strings.", "references": ["https://github.com/ruby/rexml/security/advisories/GHSA-4xqq-m2hx-25v8", "https://www.ruby-lang.org/en/news/2024/07/16/dos-rexml-cve-2024-39908", "https://security.netapp.com/advisory/ntap-20250117-0008/"], "fixes": ["2.7.0-5ubuntu1.16"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-35176", "noindex": false, "published": "2024-05-16T15:13:25.100Z", "modified": "2025-11-03T20:37:32.949Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "severity": "medium", "epss": 0.02064, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-35176", "title": "REXML contains a denial of service vulnerability", "description": " REXML is an XML toolkit for Ruby. The REXML gem before 3.2.6 has a denial of service vulnerability when it parses an XML that has many `<`s in an attribute value. Those who need to parse untrusted XMLs may be impacted to this vulnerability. The REXML gem 3.2.7 or later include the patch to fix this vulnerability. As a workaround, don't parse untrusted XMLs.", "references": ["https://github.com/ruby/rexml/security/advisories/GHSA-vg3r-rm7w-2xgh", "https://github.com/ruby/rexml/commit/4325835f92f3f142ebd91a3fdba4e1f1ab7f1cfb", "https://www.ruby-lang.org/en/news/2024/05/16/dos-rexml-cve-2024-35176"], "fixes": ["2.7.0-5ubuntu1.16"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-27281", "noindex": false, "published": "2024-05-08T20:56:26.427Z", "modified": "2025-11-04T17:17:50.282Z", "cvss": 4.5, "cvss_vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L", "severity": "medium", "epss": 0.01571, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-27281", "title": "CVE-2024-27281", "description": "An issue was discovered in RDoc 6.3.3 through 6.6.2, as distributed in Ruby 3.x through 3.3.0. When parsing .rdoc_options (used for configuration in RDoc) as a YAML file, object injection and resultant remote code execution are possible because there are no restrictions on the classes that can be restored. (When loading the documentation cache, object injection and resultant remote code execution are also possible if there were a crafted cache.) The main fixed version is 6.6.3.1. For Ruby 3.0 users, a fixed version is rdoc 6.3.4.1. For Ruby 3.1 users, a fixed version is rdoc 6.4.1.1. For Ruby 3.2 users, a fixed version is rdoc 6.5.1.1.", "references": ["https://hackerone.com/reports/1187477", "https://www.ruby-lang.org/en/news/2024/03/21/rce-rdoc-cve-2024-27281/", "https://lists.debian.org/debian-lts-announce/2024/09/msg00000.html"], "fixes": ["2.7.0-5ubuntu1.13"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-27280", "noindex": false, "published": "2024-05-08T20:51:20.388Z", "modified": "2025-11-04T17:17:47.556Z", "cvss": 9.8, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "severity": "critical", "epss": 0.02364, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-27280", "title": "CVE-2024-27280", "description": "A buffer-overread issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4. The ungetbyte and ungetc methods on a StringIO can read past the end of a string, and a subsequent call to StringIO.gets may return the memory value. 3.0.3 is the main fixed version; however, for Ruby 3.0 users, a fixed version is stringio 3.0.1.1, and for Ruby 3.1 users, a fixed version is stringio 3.0.1.2.", "references": ["https://hackerone.com/reports/1399856", "https://www.ruby-lang.org/en/news/2024/03/21/buffer-overread-cve-2024-27280/", "https://security.netapp.com/advisory/ntap-20250502-0003/"], "fixes": ["2.7.0-5ubuntu1.14"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-27282", "noindex": false, "published": "2024-05-08T20:40:42.040Z", "modified": "2025-11-04T17:17:53.040Z", "cvss": 6.6, "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L", "severity": "medium", "epss": 0.00656, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-27282", "title": "CVE-2024-27282", "description": "An issue was discovered in Ruby 3.x through 3.3.0. If attacker-supplied data is provided to the Ruby regex compiler, it is possible to extract arbitrary heap data relative to the start of the text, including pointers and sensitive strings. The fixed versions are 3.0.7, 3.1.5, 3.2.4, and 3.3.1.", "references": ["https://hackerone.com/reports/2122624", "https://www.ruby-lang.org/en/news/2024/04/23/arbitrary-memory-address-read-regexp-cve-2024-27282/", "https://security.netapp.com/advisory/ntap-20241011-0007/"], "fixes": ["2.7.0-5ubuntu1.13"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-36617", "noindex": false, "published": "2023-06-29T00:00:00.000Z", "modified": "2025-11-04T17:12:36.483Z", "cvss": 5.3, "cvss_vector": "", "severity": "medium", "epss": 0.01698, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-36617", "title": "CVE-2023-36617", "description": "A ReDoS issue was discovered in the URI component before 0.12.2 for Ruby. The URI parser mishandles invalid URLs that have specific characters. There is an increase in execution time for parsing strings to URI objects with rfc2396_parser.rb and rfc3986_parser.rb. NOTE: this issue exists becuse of an incomplete fix for CVE-2023-28755. Version 0.10.3 is also a fixed version.", "references": ["https://www.ruby-lang.org/en/news/2023/06/29/redos-in-uri-CVE-2023-36617/", "https://security.netapp.com/advisory/ntap-20230725-0002/", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QA6XUKUY7B5OLNQBLHOT43UW7C5NIOQQ/"], "fixes": ["2.7.0-5ubuntu1.12"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-28756", "noindex": false, "published": "2023-03-31T00:00:00.000Z", "modified": "2025-11-04T16:10:06.798Z", "cvss": 5.3, "cvss_vector": "", "severity": "medium", "epss": 0.02452, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-28756", "title": "CVE-2023-28756", "description": "A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to Time objects. The fixed versions are 0.1.1 and 0.2.2.", "references": ["https://www.ruby-lang.org/en/news/2022/12/25/ruby-3-2-0-released/", "https://www.ruby-lang.org/en/downloads/releases/", "https://github.com/ruby/time/releases/"], "fixes": ["2.7.0-5ubuntu1.11"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-28755", "noindex": false, "published": "2023-03-31T00:00:00.000Z", "modified": "2025-11-04T17:12:28.184Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "severity": "medium", "epss": 0.02637, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-28755", "title": "CVE-2023-28755", "description": "A ReDoS issue was discovered in the URI component through 0.12.0 in Ruby through 3.2.1. The URI parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to URI objects. The fixed versions are 0.12.1, 0.11.1, 0.10.2 and 0.10.0.1.", "references": ["https://www.ruby-lang.org/en/news/2022/12/25/ruby-3-2-0-released/", "https://www.ruby-lang.org/en/downloads/releases/", "https://github.com/ruby/uri/releases/"], "fixes": ["2.7.0-5ubuntu1.11"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2021-33621", "noindex": false, "published": "2022-11-18T00:00:00.000Z", "modified": "2025-11-04T16:09:15.135Z", "cvss": 8.8, "cvss_vector": "", "severity": "high", "epss": 0.02452, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-33621", "title": "CVE-2021-33621", "description": "The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response splitting. This is relevant to applications that use untrusted user input either to generate an HTTP response or to create a CGI::Cookie object.", "references": ["https://www.ruby-lang.org/en/news/2022/11/22/http-response-splitting-in-cgi-cve-2021-33621/", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DQR7LWED6VAPD5ATYOBZIGJQPCUBRJBX/", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YACE6ORF2QBXXBK2V2CM36D7TZMEJVAS/"], "fixes": ["2.7.0-5ubuntu1.8"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2022-28739", "noindex": false, "published": "2022-05-09T00:00:00.000Z", "modified": "2025-11-04T16:09:44.276Z", "cvss": 7.5, "cvss_vector": "", "severity": "high", "epss": 0.0437, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2022-28739", "title": "CVE-2022-28739", "description": "There is a buffer over-read in Ruby before 2.6.10, 2.7.x before 2.7.6, 3.x before 3.0.4, and 3.1.x before 3.1.2. It occurs in String-to-Float conversion, including Kernel#Float and String#to_f.", "references": ["https://hackerone.com/reports/1248108", "https://security-tracker.debian.org/tracker/CVE-2022-28739", "https://www.ruby-lang.org/en/news/2022/04/12/buffer-overrun-in-string-to-float-cve-2022-28739/"], "fixes": ["2.7.0-5ubuntu1.7"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2021-41816", "noindex": false, "published": "2022-02-06T00:00:00.000Z", "modified": "2024-08-04T03:22:24.883Z", "cvss": 9.8, "cvss_vector": "", "severity": "critical", "epss": 0.04898, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-41816", "title": "CVE-2021-41816", "description": "CGI.escape_html in Ruby before 2.7.5 and 3.x before 3.0.3 has an integer overflow and resultant buffer overflow via a long string on platforms (such as Windows) where size_t and long have different numbers of bytes. This also affects the CGI gem before 0.3.1 for Ruby.", "references": ["https://hackerone.com/reports/1328463", "https://www.ruby-lang.org/en/news/2021/11/24/buffer-overrun-in-cgi-escape_html-cve-2021-41816/", "https://security-tracker.debian.org/tracker/CVE-2021-41816"], "fixes": ["2.7.0-5ubuntu1.6"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2021-41819", "noindex": false, "published": "2022-01-01T00:00:00.000Z", "modified": "2025-05-22T15:00:52.998Z", "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": 0.03151, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-41819", "title": "CVE-2021-41819", "description": "CGI::Cookie.parse in Ruby through 2.6.8 mishandles security prefixes in cookie names. This also affects the CGI gem through 0.3.0 for Ruby.", "references": ["https://hackerone.com/reports/910552", "https://www.ruby-lang.org/en/news/2021/11/24/cookie-prefix-spoofing-in-cgi-cookie-parse-cve-2021-41819/", "https://security.netapp.com/advisory/ntap-20220121-0003/"], "fixes": ["2.7.0-5ubuntu1.6"], "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "ecosystem": "Ubuntu:20.04:LTS"}]}], "total": 27, "unknown_count": 0, "release_unconfirmed": false, "page": 1, "pages": 2, "filtered": false, "noindex": false, "filters": {}, "page_size": 20, "products": [{"name": "ruby2.7", "path": "vulns/ubuntu-20.04-lts/ruby2.7", "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": "2026-04-22T10:55:04.605848Z", "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."}]}