High severity · published Aug 12, 2026
CVE-2026-15423
Incorrect Authorization in GitLab
8.5
CVSS
0.4%
EPSS
No
On KEV
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.0 before 19.0.6, 19.1 before 19.1.4, and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute CI/CD pipelines on a protected branch without the required push permissions due to improper authorization in pipeline reference validation.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
19.0 before 19.0.6; 19.1 before 19.1.4; 19.2 before 19.2.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-15423
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-15423
Release Notes
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-2-released/
Broken Link
https://gitlab.com/gitlab-org/gitlab/-/work_items/605705
Permissions Required
https://hackerone.com/reports/3832069
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