CVE-2020-13354

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-11-17 · updated 2026-06-17
Weakness: CWE-400

Description

A potential DOS vulnerability was discovered in GitLab CE/EE starting with version 12.6. The container registry name check could cause exponential number of backtracks for certain user supplied values resulting in high CPU usage. Affected versions are: >=12.6, <13.3.9.

Affected products

GitLab: from 12.6.0 before 13.3.9 — fixed in 13.3.9

How to fix

Upgrade to a fixed version: GitLab 13.3.9. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13354.json
https://gitlab.com/gitlab-org/gitlab/-/issues/220019
https://hackerone.com/reports/869875
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13354.json
https://gitlab.com/gitlab-org/gitlab/-/issues/220019
https://hackerone.com/reports/869875

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