Medium severity · published May 14, 2026
CVE-2026-4524
Authentication Bypass Using an Alternate Path or Channel in GitLab
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
18.9.1 before 18.9.7; 18.10 before 18.10.6; 18.11 before 18.11.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4524
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4524
Release Notes
https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/
Broken Link
https://gitlab.com/gitlab-org/gitlab/-/work_items/594295
Permissions Required
https://hackerone.com/reports/3597717
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