CVE-2026-1338 — MEDIUM (4.3)

Q: How severe is CVE-2026-1338?

CVE-2026-1338 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-1338?

Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.

Vulnerability Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user with developer-role permissions to delete protected container registry tags due to improper authorization checks.

CVSS Score

4.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Gitlab	Gitlab	>= 17.10.0, < 18.9.7

Related Weaknesses (CWE)

CWE-639

References

https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-releasRelease Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/587326Not Applicable
https://hackerone.com/reports/3480620Permissions Required

FAQ

What is CVE-2026-1338?

CVE-2026-1338 is a vulnerability with a CVSS score of 4.3 (MEDIUM). GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user with develo...

How severe is CVE-2026-1338?

CVE-2026-1338 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-1338?

Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.