CVE-2023-1204

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-03 · updated 2026-06-17
Weakness: CWE-347

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.

Affected products

GitLab: from 10.0 before 12.9.8; from 12.10 before 12.10.7; from 13.0 before 13.0.1 — fixed in 12.10.7, 12.9.8, 13.0.1

How to fix

Upgrade to a fixed version: GitLab 12.10.7, 12.9.8, 13.0.1. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-1204.json
https://gitlab.com/gitlab-org/gitlab/-/issues/394745
https://hackerone.com/reports/1881598
https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-1204.json
https://gitlab.com/gitlab-org/gitlab/-/issues/394745
https://hackerone.com/reports/1881598
https://gitlab.com/gitlab-org/gitlab/-/issues/394745

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