{"id":"CVE-2026-105777","title":"Insertion of Sensitive Information Into Sent Data in GitLab","summary":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6.5 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have retrieved sensitive internal s…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cvssSource":"cna","cwe":["CWE-201"],"vendor":"GitLab","product":"GitLab","affected":["GitLab >= 17.6.5 < 19.3.6","GitLab >= 19.4 < 19.4.3","GitLab >= 19.5 < 19.5.1"],"published":"2026-10-21","updated":"2026-10-21","sourceUpdated":"2026-10-21T23:34:25.440Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-105777","references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/597022"},{"url":"https://hackerone.com/reports/3657282","label":"HackerOne Bug Bounty Report #3657282"},{"url":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T00:21:21.865Z","slug":"CVE-2026-105777","body":"## Overview\n\nGitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6.5 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have retrieved sensitive internal server credentials due to improper filtering of internal response headers.\n\n## Affected\n\n- `GitLab >= 17.6.5 < 19.3.6`\n- `GitLab >= 19.4 < 19.4.3`\n- `GitLab >= 19.5 < 19.5.1`\n\n## Remediation\n\nUpgrade to versions 19.3.6, 19.4.3, 19.5.1 or above.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}