{"id":"CVE-2026-4527","aliases":["BIT-gitlab-2026-4527","EUVD-2026-30230","GHSA-rw3w-8j7h-fwr2","UBUNTU-CVE-2026-4527"],"status":"published","title":"Cross-Site Request Forgery (CSRF) in GitLab","description":"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.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00192,"percentile":0.08938,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-352"],"published":"2026-05-14T05:34:32Z","modified":"2026-10-30T10:30:31Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["18.9.7","18.10.6","18.11.3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","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"}]}]},{"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/-/work_items/594339","tags":["Broken Link","web","report"]},{"url":"https://hackerone.com/reports/3590487","tags":["technical-description","exploit","permissions-required","Permissions Required","web","report"]},{"url":"https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/","tags":["Release Notes","article","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4527","tags":["web","advisory"]},{"url":"https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released"},{"url":"https://github.com/advisories/GHSA-rw3w-8j7h-fwr2"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4527.json","tags":["advisory"]},{"url":"git://git@gitlab.com:gitlab-org/gitlab.git","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2026-4527","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-4527","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-4527","title":"Cross-Site Request Forgery (CSRF) in 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protection.","status":"published","published":"2026-05-14T06:31:33Z","modified":"2026-05-14T06:31:40Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:08:08.28199Z"}],"nvd":[{"id":"CVE-2026-4527","description":"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.","status":"published","published":"2026-05-14T06:16:23.81Z","modified":"2026-06-17T10:56:45.05Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:12:19.020465Z"}],"osv":[{"id":"CVE-2026-4527","title":"Cross-Site Request Forgery (CSRF) in GitLab","description":"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.","status":"published","published":"2026-05-14T05:34:32.344Z","modified":"2026-10-30T10:30:31.478426358Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:45:05.172514Z"},{"id":"UBUNTU-CVE-2026-4527","description":"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.","status":"published","published":"2026-05-14T06:16:00Z","modified":"2026-05-20T22:03:08.83314263Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T16:56:26.396868Z"},{"id":"BIT-gitlab-2026-4527","title":"Cross-Site Request Forgery (CSRF) in GitLab","description":"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.","status":"published","published":"2026-05-18T06:11:02.125Z","modified":"2026-09-08T08:47:46.539700924Z","updated_at":"2026-11-02T15:28:30.70064Z"}]}}