PT-2026-34473 · Gitlab · Gitlab Ce/Ee

Published 2026-04-22 · Updated 2026-04-28 · CVE-2026-1660

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions GitLab CE/EE versions 12.3 through 18.9.5 GitLab CE/EE versions 18.10 through 18.10.3 GitLab CE/EE versions 18.11 through 18.11.0

Description An issue exists where improper input validation could allow an authenticated user to cause a denial of service when importing issues.

Recommendations Update to version 18.9.6 Update to version 18.10.4 Update to version 18.11.1

Exploit

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

BIT-GITLAB-2026-1660

CVE-2026-1660

Affected Products

Gitlab Ce/Ee

References · 9

• 🔥 https://hackerone.com/reports/3518743 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-1660 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-1660 · Vendor Advisory
• https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-1660 · Security Note
• https://osv.dev/vulnerability/BIT-gitlab-2026-1660 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-1660 · Vendor Advisory
• https://twitter.com/CVEnew/status/2047012123256189427 · Twitter Post
• https://gitlab.com/gitlab-org/gitlab/-/work_items/588200 · Note