{"id":"CVE-2026-12436","summary":"Improperly Controlled Modification of Dynamically-Determined Object Attributes in GitLab","details":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.","aliases":["BIT-gitlab-2026-12436"],"modified":"2026-08-27T11:30:50.358303995Z","published":"2026-07-29T19:00:36.048Z","related":["CGA-wf5w-xgxg-f475"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"introduced":"18.0"},{"fixed":"19.0.5"},{"introduced":"19.1"},{"fixed":"19.1.3"},{"introduced":"19.2"},{"fixed":"19.2.1"}],"source":"AFFECTED_FIELD"},{"source":"DESCRIPTION","extracted_events":[{"introduced":"18.0"},{"fixed":"19.0.5"},{"introduced":"19.1"},{"fixed":"19.1.3"},{"introduced":"19.2"},{"fixed":"19.2.1"}]}],"cna_assigner":"GitLab","cwe_ids":["CWE-915"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/12xxx/CVE-2026-12436.json"},"references":[{"type":"WEB","url":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/"},{"type":"WEB","url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/603223"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/12xxx/CVE-2026-12436.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12436"},{"type":"REPORT","url":"https://hackerone.com/reports/3800511"},{"type":"PACKAGE","url":"git://git@gitlab.com:gitlab-org/gitlab.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://gitlab.com/gitlab-org/gitlab","events":[{"introduced":"504fd9e5236e13d674e051c6b8a1e9892b371c58"},{"fixed":"e5e2c82b8e3d4db7b86f404c40483e32e3d0d0d8"},{"introduced":"67581074a0aab1f53cdafe7eead5f5d07f3afec8"},{"fixed":"f7e0d7bb4fa4f3f2f004b6bfa501f950285d87df"},{"introduced":"68485a1eb627c9a992f266263157327649822db3"},{"last_affected":"68485a1eb627c9a992f266263157327649822db3"}],"database_specific":{"source":["CPE_RANGE","CPE_STRING"],"cpe":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*","cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*","cpe:2.3:a:gitlab:gitlab:19.2.0:*:*:*:community:*:*:*","cpe:2.3:a:gitlab:gitlab:19.2.0:*:*:*:enterprise:*:*:*"],"extracted_events":[{"introduced":"18.0.0"},{"fixed":"19.0.5"},{"introduced":"19.1.0"},{"fixed":"19.1.3"},{"introduced":"19.2.0"},{"last_affected":"19.2.0"}]}}],"versions":["19.2.0","v19.1.0-ee","v19.2.0-ee"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-12436.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L"}]}