CVE-2021-22181

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-06-11 · updated 2026-06-17
Weakness: CWE-400

Description

A denial of service vulnerability in GitLab CE/EE affecting all versions since 11.8 allows an attacker to create a recursive pipeline relationship and exhaust resources.

Affected products

GitLab: from 11.8.0 before 13.10.5; from 13.11.0 before 13.11.5; from 13.12.0 before 13.12.2 — fixed in 13.10.5, 13.11.5, 13.12.2

How to fix

Upgrade to a fixed version: GitLab 13.10.5, 13.11.5, 13.12.2. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22181.json
https://gitlab.com/gitlab-org/gitlab/-/issues/249100
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22181.json
https://gitlab.com/gitlab-org/gitlab/-/issues/249100

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