CVE-2026-8937 Missing Authorization in GitLab

Medium 4.3 Published 29 Sep 2026 Updated 29 Sep 2026

Authenticated users can read private child issue contents from inaccessible projects due to missing authorization checks on linked work items.

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-2026-8937?

CVE-2026-8937 is a medium-severity missing authorization vulnerability in Gitlab Gitlab, published on 29 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.0 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 authenticated user to read private child issue contents, including titles and descriptions, from projects they had no access to, due to missing authorization checks on linked work items within visible epics.

Weakness: CWE-862

Which versions are affected by CVE-2026-8937?

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

Package	Affected	Fixed in
`gitlab` Bitnami	From `19.0.0`	`19.2.7, 19.3.3, 19.4.1`

Products include Gitlab Gitlab.

How do I fix CVE-2026-8937?

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-2026-8937 being exploited?

There is no known exploitation of CVE-2026-8937 in the wild and no public exploit code.

All Gitlab Gitlab vulnerabilities

Sources

Also known as BIT-gitlab-2026-8937, GHSA-m26x-jfj3-qhfg, MINI-554w-25j8-xw8q, MINI-gmcr-2fpj-993r, MINI-qg9x-fr76-rrx2.