Vulnerability in GitLab

[ Description ]Official description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.0 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to read private child issue contents, including titles and descriptions, from projects they had no access to, due to missing authorization checks on linked work items within visible epics.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• CERT-FR24 Sep 2026CERTFR-2026-AVI-1225

  Multiple vulnerabilities in GitLab Translated from French

  Multiple vulnerabilities have been discovered in GitLab. Some of them allow an attacker to cause arbitrary code execution, a breach of data confidentiality and remote cross-site scripting (XSS).

  CVE-2026-92529CVE-2026-84739CVE-2026-4523+8 more CVEs
• BSI CERT-Bund23 Sep 2026WID-SEC-2026-3556

  GitLab: Multiple vulnerabilities Translated from German

  CVE-2026-8937CVE-2026-93577CVE-2026-92874+8 more CVEs

[ References ]References

• docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-releasedRelease NotesVendor Advisory
• gitlab.com/gitlab-org/gitlab/-/work_items/600533Broken Link
• hackerone.com/reports/3702369Permissions Required