CVE-2026-1660 — MEDIUM (6.5)

Q: How severe is CVE-2026-1660?

CVE-2026-1660 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-1660?

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 12.3 before 18.9.6, 18.10 before 18.10.4, and 18.11 before 18.11.1 that under certain conditions could have allowed an authenticated user to cause denial of service when importing issues due to improper input validation.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gitlab	Gitlab	>= 12.3.0, < 18.9.6

Related Weaknesses (CWE)

CWE-770

References

https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-releasRelease NotesVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/588200Broken Link
https://hackerone.com/reports/3518743Permissions Required

FAQ

What is CVE-2026-1660?

CVE-2026-1660 is a vulnerability with a CVSS score of 6.5 (MEDIUM). GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.3 before 18.9.6, 18.10 before 18.10.4, and 18.11 before 18.11.1 that under certain conditions could have allowed an authen...

How severe is CVE-2026-1660?

CVE-2026-1660 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-1660?

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