🔐 CVE Alert

CVE-2026-8937

MEDIUM 4.3

Missing Authorization in GitLab

CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-862
Vendor gitlab
Product gitlab
Ecosystems
Industries
Technology
Published Sep 29, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Affected Versions

GitLab / GitLab
19.0 < 19.2.7 19.3 < 19.3.3 19.4 < 19.4.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗
gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/600533 hackerone.com: https://hackerone.com/reports/3702369 docs.gitlab.com: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/

Credits

Thanks [rogerace](https://hackerone.com/rogerace) for reporting this vulnerability through our HackerOne bug bounty program