{"id":"BIT-gitlab-2026-1090","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 10.6 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user, when the `markdown_placeholders` feature flag was enabled, to inject JavaScript in a browser due to improper sanitization of placeholder content in markdown processing.","aliases":["CVE-2026-1090"],"modified":"2026-03-14T09:15:28.580225Z","published":"2026-03-13T09:35:17.166Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*","cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*"]},"references":[{"type":"WEB","url":"https://about.gitlab.com/releases/2026/03/11/patch-release-gitlab-18-9-2-released/"},{"type":"WEB","url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/586478"},{"type":"WEB","url":"https://hackerone.com/reports/3502450"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1090"}],"affected":[{"package":{"name":"gitlab","ecosystem":"Bitnami","purl":"pkg:bitnami/gitlab"},"ranges":[{"type":"SEMVER","events":[{"introduced":"10.6.0"},{"fixed":"18.7.6"},{"introduced":"18.8.0"},{"fixed":"18.8.6"},{"introduced":"18.9.0"},{"fixed":"18.9.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/gitlab/BIT-gitlab-2026-1090.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":"1.7.5"}