All vulnerabilities
CVE-2026-8937

Missing Authorization in GitLab

GitLab GitLabApplications & CMS
Open in ThreatlineRecord JSON
CVSS
4.3Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.31%Chance of exploitation activity in the next 30 days, higher than 22% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in19.2.7Also 19.3.3, 19.4.1CVE List
Published29 Sep 2026Updated 29 Sep 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 3

  • GitLabaffected: 19.0 before 19.2.7CVE List
  • GitLabaffected: 19.3 before 19.3.3CVE List
  • GitLabaffected: 19.4 before 19.4.1CVE List

References 3