{"id":"CVE-2023-6159","aliases":["BIT-gitlab-2023-6159","EUVD-2023-58409","GHSA-6hch-mpjp-2743","UBUNTU-CVE-2023-6159"],"status":"published","title":"Inefficient Regular Expression Complexity in GitLab","description":"An issue has been discovered in GitLab CE/EE affecting all versions from 12.7 prior to 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1 It was possible for an attacker to trigger a Regular Expression Denial of Service via a `Cargo.toml` containing maliciously crafted input.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00987,"percentile":0.62706,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1333"],"published":"2024-01-26T02:02:29Z","modified":"2026-10-30T10:46:40Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["16.6.6","16.7.4","16.8.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","events":[{"introduced":"12.7.0"},{"fixed":"16.6.6"},{"introduced":"16.7.0"},{"fixed":"16.7.4"},{"introduced":"16.8.0"},{"fixed":"16.8.1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"gitlab","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.4.3+dfsg-9","8.4.3+dfsg-12","8.5.8+dfsg-5"]}],"products":[{"vendor":"gitlab","product":"gitlab"}],"references":[{"url":"https://about.gitlab.com/releases/2024/01/25/critical-security-release-gitlab-16-8-1-released/","tags":["x_transferred","Vendor Advisory","advisory","web","report"]},{"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/431924","tags":["issue-tracking","permissions-required","x_transferred","Broken Link","web","report"]},{"url":"https://hackerone.com/reports/2251278","tags":["technical-description","exploit","permissions-required","broken-link","x_transferred","Permissions Required","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-6159","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-6hch-mpjp-2743"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6159.json","tags":["advisory"]},{"url":"git://git@gitlab.com:gitlab-org/gitlab.git","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2023-6159","tags":["report"]},{"url":"https://about.gitlab.com/releases/2024/01/25/critical-security-release-gitlab-16-8-1-released","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-6159","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-6159","title":"Inefficient Regular Expression Complexity in GitLab","description":"An issue has been discovered in GitLab CE/EE affecting all versions from 12.7 prior to 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1 It was possible for an attacker to trigger a Regular Expression Denial of Service via a `Cargo.toml` containing maliciously crafted input.","status":"published","published":"2024-01-26T02:02:29.909Z","modified":"2026-08-14T04:14:08.481Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:35:25.469654Z"}],"euvd":[{"id":"EUVD-2023-58409","description":"An issue has been discovered in GitLab CE/EE affecting all versions from 12.7 prior to 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1 It was possible for an attacker to trigger a Regular Expression Denial of Service via a `Cargo.toml` containing maliciously crafted input.","status":"published","published":"2024-01-26T02:02:29Z","modified":"2026-08-14T04:14:08Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T18:01:55.248337Z"}],"ghsa":[{"id":"GHSA-6hch-mpjp-2743","title":"An issue has been discovered in GitLab CE/EE affecting all versions from 12.7 prior to 16.6.6, 16...","description":"An issue has been discovered in GitLab CE/EE affecting all versions from 12.7 prior to 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1 It was possible for an attacker to trigger a Regular Expression Denial of Service via a `Cargo.toml` containing maliciously crafted input.","status":"published","published":"2024-01-26T03:30:19Z","modified":"2024-01-26T03:30:25Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:55:29.01801Z"}],"nvd":[{"id":"CVE-2023-6159","description":"An issue has been discovered in GitLab CE/EE affecting all versions from 12.7 prior to 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1 It was possible for an attacker to trigger a Regular Expression Denial of Service via a `Cargo.toml` containing maliciously crafted input.","status":"published","published":"2024-01-26T02:15:07.567Z","modified":"2026-06-17T06:50:10.43Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:09:01.900189Z"}],"osv":[{"id":"CVE-2023-6159","title":"Inefficient Regular Expression Complexity in GitLab","description":"An issue has been discovered in GitLab CE/EE affecting all versions from 12.7 prior to 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1 It was possible for an attacker to trigger a Regular Expression Denial of Service via a `Cargo.toml` containing maliciously crafted input.","status":"published","published":"2024-01-26T02:02:29.909Z","modified":"2026-10-30T10:46:40.041081372Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T15:44:36.851042Z"},{"id":"UBUNTU-CVE-2023-6159","description":"An issue has been discovered in GitLab CE/EE affecting all versions from 12.7 prior to 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1 It was possible for an attacker to trigger a Regular Expression Denial of Service via a `Cargo.toml` containing maliciously crafted input.","status":"published","published":"2024-01-26T02:15:00Z","modified":"2025-10-24T05:01:37Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:54:41.555387Z"},{"id":"BIT-gitlab-2023-6159","title":"Inefficient Regular Expression Complexity in GitLab","description":"An issue has been discovered in GitLab CE/EE affecting all versions from 12.7 prior to 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1 It was possible for an attacker to trigger a Regular Expression Denial of Service via a `Cargo.toml` containing maliciously crafted input.","status":"published","published":"2024-03-06T10:54:58.964Z","modified":"2026-09-08T08:47:43.211886227Z","updated_at":"2026-11-02T15:28:30.405543Z"}]}}