CVE-2026-1338

🔶 medium

Summary

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

EPSS Score

0.0

Exploit Probability

Published Date

2026-05-14

First Seen: 2026-05-17

📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 5.4% of all 327,350 vulnerabilities in our database.

#309,612

Below average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: May 14, 2026

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Partial

Limited system impact

🏆 Discovered By

Thanks [go7f0](https://hackerone.com/go7f0) for reporting this vulnerability through our HackerOne bug bounty program

SSVC data provided by CISA

Last Modified 2026-05-16

Source NVD 🔗

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

CWE IDs (Weakness Types)

CWE-639

📦 Affected Products 3

Vendor	Product	Status	Affected Versions
gitlab	gitlab	Affected	> 18.10.0 < 18.10.6
gitlab	gitlab	Affected	> 18.11.0 < 18.11.3
gitlab	gitlab	Affected	> 17.10.0 < 18.9.7

🔗 References 3

https://about.gitlab.com/releases/2026/05/13/patch-r...

Release Notes

https://gitlab.com/gitlab-org/gitlab/-/work_items/58...

Not Applicable

https://hackerone.com/reports/3480620

Permissions Required

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-6277	🔶 medium	4.3	0.0	GitLab has remediated an issue in GitLab EE affecting all versions from 13.9 before 18.10.8, 18.11 before 18.11.5, and 1...	2026-06-11
CVE-2026-6552	⚠️ high	8.7	0.0	GitLab has remediated an issue in GitLab EE affecting all versions from 15.5 before 18.10.8, 18.11 before 18.11.5, and 1...	2026-06-11
CVE-2026-6976	ℹ️ low	3.7	0.0	GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.9 before 18.10.8, 18.11 before 18.11.5, an...	2026-06-11
CVE-2026-7250	⚠️ high	7.5	0.0	GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.10 before 18.10.8, 18.11 before 18.11.5, a...	2026-06-11
CVE-2026-8589	⚠️ high	7.3	0.1	GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and...	2026-06-11
CVE-2026-9204	🔶 medium	5.3	0.0	GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.8, 18.11 before 18.11.5, a...	2026-06-11

These CVEs affect the same products