CVE-2022-4376

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-03 · updated 2026-06-17

Description

An issue has been discovered in GitLab affecting all versions before 15.9.6, all versions starting from 15.10 before 15.10.5, all versions starting from 15.11 before 15.11.1. Under certain conditions, an attacker may be able to map a private email of a GitLab user to their GitLab account on an instance.

Affected products

GitLab: from 8.6.0 before 15.9.6; from 15.10 before 15.10.5; from 15.11 before 15.11.1 — fixed in 15.10.5, 15.11.1, 15.9.6

How to fix

Upgrade to a fixed version: GitLab 15.10.5, 15.11.1, 15.9.6. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-4376.json
https://gitlab.com/gitlab-org/gitlab/-/issues/385246
https://hackerone.com/reports/1794713
https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-4376.json
https://gitlab.com/gitlab-org/gitlab/-/issues/385246
https://hackerone.com/reports/1794713

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