Low severity · published Sep 29, 2026
CVE-2026-4523
Missing Authorization in GitLab
3.7
CVSS
0.3%
EPSS
No
On KEV
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.11 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 unauthenticated user to read CI/CD job trace contents containing sensitive variable values due to improper authorization enforcement in the GraphQL API.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
15.11 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-2026-4523
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4523
gitlab.com
https://gitlab.com/gitlab-org/gitlab/-/work_items/594294
technical-description
https://hackerone.com/reports/3590929
docs.gitlab.com
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/
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