CVE-2023-4532 Incorrect Authorization in GitLab

Medium 4.3 Published 29 Sep 2023 Updated 26 Apr 2026

Users can link CI/CD jobs from private projects they do not have access to, potentially exposing sensitive pipeline information.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2023-4532?

CVE-2023-4532 is a medium-severity missing authorization vulnerability in Gitlab Gitlab, published on 29 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue has been discovered in GitLab affecting all versions starting from 16.2 before 16.2.8, all versions starting from 16.3 before 16.3.5, all versions starting from 16.4 before 16.4.1. Users were capable of linking CI/CD jobs of private projects which they are not a member of.

Weakness: CWE-863

Which versions are affected by CVE-2023-4532?

1 open source package ship an affected version, including gitlab. It affects 1 product.

Package	Affected	Fixed in
`gitlab` Bitnami	From `16.2.0`	`16.2.8, 16.3.5, 16.4.1`

Products include Gitlab Gitlab.

How do I fix CVE-2023-4532?

Upgrade gitlab to a fixed version for your release line: 16.2.8, 16.3.5 or 16.4.1.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2023-4532 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4532 exists.

All Gitlab Gitlab vulnerabilities

Sources

Also known as BIT-gitlab-2023-4532, GHSA-cpg4-gv23-mpmj, UBUNTU-CVE-2023-4532.