CVE-2020-13357

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: 2020-12-11 · updated 2026-06-17
Weakness: CWE-639

Description

An issue was discovered in Gitlab CE/EE versions >= 13.1 to <13.4.7, >= 13.5 to <13.5.5, and >= 13.6 to <13.6.2 allowed an unauthorized user to access the user list corresponding to a feature flag in a project.

Affected products

GitLab: from 13.1.0 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-2020-13357.json
https://gitlab.com/gitlab-org/gitlab/-/issues/241132
https://hackerone.com/reports/962408
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13357.json
https://gitlab.com/gitlab-org/gitlab/-/issues/241132
https://hackerone.com/reports/962408

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