🔐 CVE Alert

CVE-2026-4524

MEDIUM 6.5

Authentication Bypass Using an Alternate Path or Channel in GitLab

CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9.1 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user to access confidential issue content in public projects without proper authorization due to improper authorization checks.

CWE CWE-288
Vendor gitlab
Product gitlab
Ecosystems
Industries
Technology
Published May 14, 2026
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CVSS v3 Breakdown

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

Affected Versions

GitLab / GitLab
18.9.1 < 18.9.7 18.10 < 18.10.6 18.11 < 18.11.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗
gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/594295 hackerone.com: https://hackerone.com/reports/3597717 about.gitlab.com: https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/

Credits

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