CVE-2026-4523 Missing Authorization in GitLab

Low 3.7 Published 29 Sep 2026 Updated 29 Sep 2026

Unauthenticated attackers can read sensitive CI/CD job trace contents via GraphQL API due to missing authorization checks.

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

What is CVE-2026-4523?

CVE-2026-4523 is a low-severity missing authorization vulnerability in Gitlab Gitlab, published on 29 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.11 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an unauthenticated user to read CI/CD job trace contents containing sensitive variable values due to improper authorization enforcement in the GraphQL API.

Weakness: CWE-862

Which versions are affected by CVE-2026-4523?

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

Package	Affected	Fixed in
`gitlab` Bitnami	From `15.11.0`	`19.2.7, 19.3.3, 19.4.1`

Products include Gitlab Gitlab.

How do I fix CVE-2026-4523?

Upgrade gitlab to a fixed version for your release line: 19.2.7, 19.3.3 or 19.4.1.

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

Is CVE-2026-4523 being exploited?

There is no known exploitation of CVE-2026-4523 in the wild and no public exploit code.

All Gitlab Gitlab vulnerabilities

Sources

Also known as BIT-gitlab-2026-4523, GHSA-75vf-vmx4-frc7, MINI-4qj6-jj72-ffm7, MINI-wmpw-pvxh-87hg, MINI-wvqj-q473-47cf.