🔐 CVE Alert

CVE-2026-5377

MEDIUM 4.3

Incorrect 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 18.11 before 18.11.1 that could have allowed an authenticated user to access titles of confidential or private issues in public projects due to improper access control in the issue description rendering process.

CWE CWE-863
Vendor gitlab
Product gitlab
Ecosystems
Industries
Technology
Published Apr 22, 2026
Last Updated Apr 22, 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
18.11 < 18.11.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗
gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/595553 hackerone.com: https://hackerone.com/reports/3640688 about.gitlab.com: https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/

Credits

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