PT-2026-31548 · Gitlab · Gitlab Ce/Ee

Published

2026-04-08

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Updated

2026-04-17

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CVE-2026-5173

CVSS v3.1

8.5

High

VectorAV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Name of the Vulnerable Software and Affected Versions GitLab CE/EE versions 16.9.6 through 18.8.9, 18.9 through 18.9.5, and 18.10 through 18.10.3
Description GitLab CE/EE is affected by an issue where an authenticated user could invoke unintended server-side methods through websocket connections due to improper access control. The issue affects versions 16.9.6 through 18.10.3.
Recommendations Update to a version after 18.8.9 Update to a version after 18.9.5 Update to a version after 18.10.3

Exploit

Fix

DoS

Weakness Enumeration

Related Identifiers

BDU:2026-05153
BIT-GITLAB-2026-5173
CVE-2026-5173

Affected Products

Gitlab Ce/Ee