{"id":"CVE-2023-3424","aliases":["BIT-gitlab-2023-3424","EUVD-2023-44090","GHSA-73w2-5f6g-jx42","UBUNTU-CVE-2023-3424"],"status":"published","title":"Inefficient Regular Expression Complexity in GitLab","description":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00905,"percentile":0.60099,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1333","CWE-400"],"published":"2023-07-13T02:08:07Z","modified":"2026-10-30T10:46:35Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["15.11.10","16.0.6","16.1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","events":[{"introduced":"10.3.0"},{"fixed":"15.11.10"},{"introduced":"16.0.0"},{"fixed":"16.0.6"},{"introduced":"16.1.0"},{"fixed":"16.1.1"}]}]},{"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://gitlab.com/gitlab-org/gitlab/-/issues/409802","tags":["issue-tracking","x_transferred","Broken Link","Vendor Advisory","advisory","report"]},{"url":"https://hackerone.com/reports/1960970","tags":["technical-description","exploit","x_transferred","Third Party Advisory","advisory","evidence","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3424","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-73w2-5f6g-jx42"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3424.json","tags":["advisory"]},{"url":"git://git@gitlab.com:gitlab-org/gitlab.git","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2023-3424","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-3424","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-3424","title":"Inefficient Regular Expression Complexity in GitLab","description":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.","status":"published","published":"2023-07-13T02:08:07.284Z","modified":"2024-10-30T19:29:27.116Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:35:24.360381Z"}],"euvd":[{"id":"EUVD-2023-44090","description":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.","status":"published","published":"2023-07-13T02:08:07Z","modified":"2024-10-30T19:29:27Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:05:13.91882Z"}],"ghsa":[{"id":"GHSA-73w2-5f6g-jx42","title":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15...","description":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.","status":"published","published":"2023-07-13T03:30:48Z","modified":"2024-04-04T06:06:36Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400","CWE-1333"],"updated_at":"2026-11-02T14:56:39.294815Z"}],"nvd":[{"id":"CVE-2023-3424","description":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.","status":"published","published":"2023-07-13T03:15:10.347Z","modified":"2026-06-17T06:14:02.733Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:08:15.91037Z"}],"osv":[{"id":"CVE-2023-3424","title":"Inefficient Regular Expression Complexity in GitLab","description":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.","status":"published","published":"2023-07-13T02:08:07.284Z","modified":"2026-10-30T10:46:35.182031524Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T15:44:32.116263Z"},{"id":"UBUNTU-CVE-2023-3424","description":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.","status":"published","published":"2023-07-13T03:15:00Z","modified":"2025-10-24T05:01:24Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:54:21.882004Z"},{"id":"BIT-gitlab-2023-3424","title":"Inefficient Regular Expression Complexity in GitLab","description":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.","status":"published","published":"2024-03-06T11:04:54.702Z","modified":"2026-09-08T08:47:43.119297414Z","updated_at":"2026-11-02T15:28:30.405543Z"}]}}