CVE-2023-1204 Missing authorization in GitLab

Medium 4.3 Published 3 May 2023 Updated 30 Jan 2025

Attackers can set unverified emails as public or commit addresses via crafted requests, bypassing email verification controls in GitLab.

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-2023-1204?

CVE-2023-1204 is a medium-severity missing authorization vulnerability in Gitlab Gitlab, published on 3 May 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 CE/EE affecting all versions starting from 10.1 before 15.10.8, all versions starting from 15.11 before 15.11.7, all versions starting from 16.0 before 16.0.2. A user could use an unverified email as a public email and commit email by sending a specifically crafted request on user update settings.

Weakness: CWE-347

Which versions are affected by CVE-2023-1204?

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

Package	Affected	Fixed in
`gitlab` Bitnami	From `10.0.0`	`12.9.8, 12.10.7, 13.0.1`

Products include Gitlab Gitlab.

How do I fix CVE-2023-1204?

Upgrade gitlab to a fixed version for your release line: 12.9.8, 12.10.7 or 13.0.1.

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

Is CVE-2023-1204 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-1204 exists.

All Gitlab Gitlab vulnerabilities

Sources

Also known as BIT-gitlab-2023-1204, GHSA-cf86-5cg9-6496, UBUNTU-CVE-2023-1204.