CVE-2020-26411

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-12-11 · updated 2026-06-17
Weakness: CWE-404

Description

A potential DOS vulnerability was discovered in all versions of Gitlab starting from 13.4.x (>=13.4 to <13.4.7, >=13.5 to <13.5.5, and >=13.6 to <13.6.2). Using a specific query name for a project search can cause statement timeouts that can lead to a potential DOS if abused.

Affected products

GitLab: from 13.4.0 before 13.4.7; from 13.5.0 before 13.5.5; from 13.6.0 before 13.6.2 — fixed in 13.4.7, 13.5.5, 13.6.2

How to fix

Upgrade to a fixed version: GitLab 13.4.7, 13.5.5, 13.6.2. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26411.json
https://gitlab.com/gitlab-org/gitlab/-/issues/260330
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26411.json
https://gitlab.com/gitlab-org/gitlab/-/issues/260330

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