{"id":"BIT-gitlab-2026-6335","summary":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab","details":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.3 that under certain conditions could have allowed an authenticated user to execute arbitrary code in another user's browser session due to improper sanitization.","aliases":["CVE-2026-6335"],"modified":"2026-09-08T08:47:46.511528218Z","published":"2026-05-18T06:11:18.666Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*","cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*"]},"references":[{"type":"ARTICLE","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/596760"},{"type":"WEB","url":"https://hackerone.com/reports/3673647"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6335"}],"affected":[{"package":{"name":"gitlab","ecosystem":"Bitnami","purl":"pkg:bitnami/gitlab"},"ranges":[{"type":"SEMVER","events":[{"introduced":"18.11.0"},{"fixed":"18.11.3"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/gitlab/BIT-gitlab-2026-6335.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}],"schema_version":"1.9.0"}