CVE-2026-4523

LOW 3.7

Missing Authorization in GitLab

CVSS Score

3.7

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	gitlab
Product	gitlab
Ecosystems	DevTools
Industries	Technology
Published	Sep 29, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

GitLab / GitLab

15.11 < 19.2.7 19.3 < 19.3.3 19.4 < 19.4.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/594294 hackerone.com: https://hackerone.com/reports/3590929 docs.gitlab.com: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/

Credits

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