{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-3909","assignerOrgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","state":"PUBLISHED","assignerShortName":"GitLab","dateReserved":"2023-07-25T10:30:28.870Z","datePublished":"2023-11-06T12:08:45.129Z","dateUpdated":"2025-11-20T04:08:28.265Z"},"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 12.3 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. A Regular Expression Denial of Service was possible by adding a large string in timeout input in gitlab-ci.yml file."}],"affected":[{"vendor":"GitLab","product":"GitLab","repo":"git://git@gitlab.com:gitlab-org/gitlab.git","cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"],"versions":[{"version":"12.3","status":"affected","lessThan":"16.3.6","versionType":"semver"},{"version":"16.4","status":"affected","lessThan":"16.4.2","versionType":"semver"},{"version":"16.5","status":"affected","lessThan":"16.5.1","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/418763","name":"GitLab Issue #418763","tags":["issue-tracking","permissions-required"]},{"url":"https://hackerone.com/reports/2050269","name":"HackerOne Bug Bounty Report #2050269","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:L/UI:N/S:U/C:N/I:N/A:L","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW","baseScore":4.3,"baseSeverity":"MEDIUM"}}],"solutions":[{"lang":"en","value":"Upgrade to version 16.5.1, 16.4.2, 16.3.6"}],"credits":[{"lang":"en","value":"Thanks [akadrian](https://hackerone.com/akadrian) for reporting this vulnerability through our HackerOne bug bounty program","type":"finder"}],"providerMetadata":{"orgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","shortName":"GitLab","dateUpdated":"2025-11-20T04:08:28.265Z"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-07-24T13:29:29.851628Z","id":"CVE-2023-3909","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2025-06-12T14:24:38.009Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T07:08:50.675Z"},"title":"CVE Program Container","references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/418763","name":"GitLab Issue #418763","tags":["issue-tracking","permissions-required","x_transferred"]},{"url":"https://hackerone.com/reports/2050269","name":"HackerOne Bug Bounty Report #2050269","tags":["technical-description","exploit","x_transferred"]}]}]}}