CVE-2023-6955: Missing Authorization in GitLab

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-01-12 · updated 2026-06-17
Weakness: CWE-862

Description

A missing authorization check vulnerability exists in GitLab Remote Development affecting all versions prior to 16.5.6, 16.6 prior to 16.6.4 and 16.7 prior to 16.7.2. This condition allows an attacker to create a workspace in one group that is associated with an agent from another group.

Affected products

GitLab: before 16.5.6; from 16.6.0 before 16.6.4; 16.7.0, 16.7.1 — fixed in 16.5.6, 16.6.4

How to fix

Upgrade to a fixed version: GitLab 16.5.6, 16.6.4. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/gitlab/-/issues/432188
https://gitlab.com/gitlab-org/gitlab/-/issues/432188

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