PT-2026-36035 · Gitlab · Gitlab Ce/Ee

Published 2026-04-29 · Updated 2026-05-18 · CVE-2026-1659

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions GitLab CE/EE versions 9.0 through 18.9.6 GitLab CE/EE versions 18.10 through 18.10.5 GitLab CE/EE versions 18.11 through 18.11.2

Description Insufficient input validation allows an unauthenticated user to cause a denial of service by sending specially crafted requests.

Recommendations Update GitLab CE/EE to version 18.9.7 or later. Update GitLab CE/EE to version 18.10.6 or later. Update GitLab CE/EE to version 18.11.3 or later.

Exploit

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

BIT-GITLAB-2026-1659

CVE-2026-1659

Affected Products

Gitlab Ce/Ee

References · 9

• 🔥 https://hackerone.com/reports/3519824 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-1659 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-1659 · Security Note
• https://osv.dev/vulnerability/BIT-gitlab-2026-1659 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-1659 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-1659 · Vendor Advisory
• https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released · Note
• https://gitlab.com/gitlab-org/gitlab/-/work_items/588201 · Note
• https://twitter.com/Cezar_H_Linux/status/2049557405344657600 · Twitter Post