CVE-2022-1954

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-07-01 · updated 2026-06-17
Weakness: CWE-1333

Description

A Regular Expression Denial of Service vulnerability in GitLab CE/EE affecting all versions from 1.0.2 prior to 14.10.5, 15.0 prior to 15.0.4, and 15.1 prior to 15.1.1 allows an attacker to make a GitLab instance inaccessible via specially crafted web server response headers

Affected products

GitLab: from 1.0.2 before 14.10.5; from 15.0.0 before 15.0.4; 15.1.0 — fixed in 14.10.5, 15.0.4

How to fix

Upgrade to a fixed version: GitLab 14.10.5, 15.0.4. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-1954.json
https://gitlab.com/gitlab-org/gitlab/-/issues/358160
https://hackerone.com/reports/1531958
https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-1954.json
https://gitlab.com/gitlab-org/gitlab/-/issues/358160
https://hackerone.com/reports/1531958

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