{"id":"BIT-gitlab-2025-12983","summary":"Memory Allocation with Excessive Size Value in GitLab","details":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.9 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker to cause a denial of service condition by submitting specially crafted markdown content with nested formatting patterns.","aliases":["CVE-2025-12983"],"modified":"2025-11-21T09:06:15.683Z","published":"2025-11-20T09:03:27.972Z","database_specific":{"cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*","cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*","cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"],"severity":"Medium"},"references":[{"type":"WEB","url":"https://about.gitlab.com/releases/2025/11/12/patch-release-gitlab-18-5-2-released/"},{"type":"WEB","url":"https://gitlab.com/gitlab-org/gitlab/-/issues/296257"},{"type":"WEB","url":"https://hackerone.com/reports/3419588"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-12983"}],"affected":[{"package":{"name":"gitlab","ecosystem":"Bitnami","purl":"pkg:bitnami/gitlab"},"ranges":[{"type":"SEMVER","events":[{"introduced":"16.9.0"},{"fixed":"18.3.6"},{"introduced":"18.4.0"},{"fixed":"18.4.4"},{"introduced":"18.5.0"},{"fixed":"18.5.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/gitlab/BIT-gitlab-2025-12983.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.7.3"}