CVE-2026-1338: Authorization Bypass Through User-Controlled Key in GitLab

Published May 14, 2026
·
Updated

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.

Affected Software

8 affected components
GitLab GitLab CE>=17.10<18.9.7, >=18.10<18.10.6, >=18.11<18.11.3
GitLab GitLab EE>=17.10<18.9.7, >=18.10<18.10.6, >=18.11<18.11.3
GitLab GitLab>=17.10.0<18.9.7
GitLab GitLab>=17.10.0<18.9.7
GitLab GitLab>=18.10.0<18.10.6
GitLab GitLab>=18.10.0<18.10.6
GitLab GitLab>=18.11.0<18.11.3
GitLab GitLab>=18.11.0<18.11.3

Remediation

Information

Upgrade to versions 18.9.7, 18.10.6, 18.11.3 or above.

Event History

May 14, 2026
CVE Published
via MITRE·05:36 AM
Data Sourced
via MITRE·05:36 AM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·06:16 AM
DescriptionSeverityWeaknessAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2026-1338?

CVE-2026-1338 has a severity rating that indicates a significant security risk due to authorization bypass issues.

2

How do I fix CVE-2026-1338?

To fix CVE-2026-1338, update your GitLab CE/EE to version 18.9.7 or later, 18.10.6 or later, or 18.11.3 or later.

3

What versions of GitLab are affected by CVE-2026-1338?

CVE-2026-1338 affects GitLab CE/EE versions from 17.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3.

4

What type of vulnerability is CVE-2026-1338?

CVE-2026-1338 is classified as an authorization bypass vulnerability.

5

Who can be impacted by CVE-2026-1338?

Authenticated users with developer-role permissions may be impacted by CVE-2026-1338 as they could exploit it to delete protected resources.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203
CVE-2026-1338 - Authorization Bypass Through User-Controlled Key in GitLab - SecAlerts