{"id":"BIT-gitlab-2021-39917","details":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.9 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. A regular expression related to quick actions features was susceptible to catastrophic backtracking that could cause a DOS attack.","aliases":["CVE-2021-39917"],"modified":"2026-09-10T16:01:32.989487983Z","published":"2024-03-06T11:17:39.916Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*","cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*","cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39917.json"},{"type":"WEB","url":"https://gitlab.com/gitlab-org/gitlab/-/issues/338486"},{"type":"ADVISORY","url":"https://hackerone.com/reports/1277918"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39917"}],"affected":[{"package":{"name":"gitlab","ecosystem":"Bitnami","purl":"pkg:bitnami/gitlab"},"ranges":[{"type":"SEMVER","events":[{"introduced":"12.9.0"},{"fixed":"14.3.6"},{"introduced":"14.4.0"},{"fixed":"14.4.4"},{"introduced":"14.5.0"},{"fixed":"14.5.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/gitlab/BIT-gitlab-2021-39917.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"}]}],"schema_version":"1.9.0"}