{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-3994","assignerOrgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","state":"PUBLISHED","assignerShortName":"GitLab","dateReserved":"2023-07-28T09:01:26.489Z","datePublished":"2023-08-02T00:06:50.342Z","dateUpdated":"2026-04-27T04:06:31.406Z"},"containers":{"cna":{"title":"Inefficient Regular Expression Complexity in GitLab","descriptions":[{"lang":"en","value":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possible via sending crafted payloads which use ProjectReferenceFilter to the preview_markdown endpoint."}],"affected":[{"vendor":"GitLab","product":"GitLab","repo":"git://git@gitlab.com:gitlab-org/gitlab.git","cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"],"versions":[{"version":"9.3","status":"affected","lessThan":"16.0.8","versionType":"semver"},{"version":"16.1","status":"affected","lessThan":"16.1.3","versionType":"semver"},{"version":"16.2","status":"affected","lessThan":"16.2.2","versionType":"semver"}],"defaultStatus":"unaffected"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-1333: Inefficient Regular Expression Complexity","cweId":"CWE-1333","type":"CWE"}]}],"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/416225","name":"GitLab Issue #416225","tags":["issue-tracking","permissions-required"]},{"url":"https://hackerone.com/reports/1963255","name":"HackerOne Bug Bounty Report #1963255","tags":["technical-description","exploit","permissions-required"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"}}],"solutions":[{"lang":"en","value":"Upgrade to versions 16.2.2, 16.1.3, 16.0.8 or above."}],"credits":[{"lang":"en","value":"Thanks [ryhmnlfj](https://hackerone.com/ryhmnlfj) for reporting this vulnerability through our HackerOne bug bounty program","type":"finder"}],"providerMetadata":{"orgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","shortName":"GitLab","dateUpdated":"2026-04-27T04:06:31.406Z"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T07:08:50.873Z"},"title":"CVE Program Container","references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/416225","name":"GitLab Issue #416225","tags":["issue-tracking","x_transferred"]},{"url":"https://hackerone.com/reports/1963255","name":"HackerOne Bug Bounty Report #1963255","tags":["technical-description","exploit","x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-08-30T15:42:16.495069Z","id":"CVE-2023-3994","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-08-30T15:42:41.185Z"}}]}}