Medium severity · published Sep 29, 2026
CVE-2026-10518
Incorrect Authorization in GitLab
4.3
CVSS
0.2%
EPSS
No
On KEV
Description
GitLab has remediated an issue in GitLab EE affecting all versions from 17.9 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 with guest-level permissions to read private security policy content they were not authorized to access due to improper authorization enforcement.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
17.9 before 19.2.7; 19.3 before 19.3.3; 19.4 before 19.4.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-10518
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-10518
gitlab.com
https://gitlab.com/gitlab-org/gitlab/-/work_items/601723
technical-description
https://hackerone.com/reports/3686230
docs.gitlab.com
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/
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