{"id":"CVE-2026-4527","summary":"Cross-Site Request Forgery (CSRF) in GitLab","details":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to create unauthorized Jira subscriptions for a targeted user's namespace via a specially crafted link due to missing CSRF protection.","aliases":["BIT-gitlab-2026-4527"],"modified":"2026-08-27T11:30:41.308770233Z","published":"2026-05-14T05:34:32.344Z","database_specific":{"cna_assigner":"GitLab","cwe_ids":["CWE-352"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4527.json","unresolved_ranges":[{"extracted_events":[{"introduced":"11.10"},{"fixed":"18.9.7"},{"introduced":"18.10"},{"fixed":"18.10.6"},{"introduced":"18.11"},{"fixed":"18.11.3"}],"source":"AFFECTED_FIELD"},{"extracted_events":[{"introduced":"11.10"},{"fixed":"18.9.7"},{"introduced":"18.10"},{"fixed":"18.10.6"},{"introduced":"18.11"},{"fixed":"18.11.3"}],"source":"DESCRIPTION"}]},"references":[{"type":"WEB","url":"https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/"},{"type":"WEB","url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/594339"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4527.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4527"},{"type":"REPORT","url":"https://hackerone.com/reports/3590487"},{"type":"PACKAGE","url":"git://git@gitlab.com:gitlab-org/gitlab.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://gitlab.com/gitlab-org/gitlab","events":[{"introduced":"dfa95630be4342688ff24c0fa0d283e427a4a996"},{"fixed":"d2242c5752a152db3c281d8a9d1e7f248e1654a9"},{"introduced":"57c08314af5bc8f317b1967330f92ed029e2c628"},{"fixed":"f80804c4e73fb0404af24e88ffb5246c0aeeda40"},{"introduced":"1060c7b0ff78be7c8abe8fd6d23dcb1ca493fd78"},{"fixed":"daa4145c8330213081c57260b569539e3b157b87"}],"database_specific":{"source":"CPE_RANGE","cpe":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*","cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*"],"extracted_events":[{"introduced":"11.10.0"},{"fixed":"18.9.7"},{"introduced":"18.10.0"},{"fixed":"18.10.6"},{"introduced":"18.11.0"},{"fixed":"18.11.3"}]}}],"versions":["v18.10.5-ee","v18.11.2-ee","v18.11.0-ee","v18.10.2-ee","v18.10.0-ee"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-4527.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"}]}