CVE-2025-5996

MEDIUM

GitLab 2.1.0-17.10.7, 17.11.0-17.11.3, 18.0.0-18.0.1 - DoS via HTTP Response Input Validation Bypass

Title source: llm
STIX 2.1

Description

An issue has been discovered in GitLab CE/EE affecting all versions from 2.1.0 before 17.10.8, 17.11 before 17.11.4, and 18.0 before 18.0.2. A lack of input validation in HTTP responses could allow an authenticated user to cause denial of service.

References (5)

Core 5
Core References
Exploit, Issue Tracking issue-tracking permissions-required
https://gitlab.com/gitlab-org/gitlab/-/issues/476671
Broken Link issue-tracking permissions-required
https://gitlab.com/gitlab-org/gitlab/-/issues/483150
Exploit, Issue Tracking issue-tracking permissions-required
https://gitlab.com/gitlab-org/gitlab/-/issues/479167
Exploit, Issue Tracking issue-tracking permissions-required
https://gitlab.com/gitlab-org/gitlab/-/issues/483111
Broken Link issue-tracking permissions-required
https://gitlab.com/gitlab-org/gitlab/-/issues/498649

Scores

CVSS v3 6.5
EPSS 0.0048
EPSS Percentile 65.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (1)
gitlab/gitlab 2.1.0 - 17.10.8 (2 CPE variants)
Published Jun 12, 2025
Tracked Since Feb 18, 2026