CVE-2024-2880: Improper Access Control in GitLab

Severity: low (CVSS 2.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-07-11 · updated 2026-06-17
Weakness: CWE-284

Description

An issue was discovered in GitLab CE/EE affecting all versions starting from 16.5 prior to 16.11.6, starting from 17.0 prior to 17.0.4, and starting from 17.1 prior to 17.1.2 in which a user with `admin_group_member` custom role permission could ban group members.

Affected products

GitLab: from 16.5.0 before 16.11.6; from 17.0.0 before 17.0.4; from 17.1.0 before 17.1.2 — fixed in 16.11.6, 17.0.4, 17.1.2

How to fix

Upgrade to a fixed version: GitLab 16.11.6, 17.0.4, 17.1.2. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/gitlab/-/issues/451921
https://hackerone.com/reports/2431597
https://gitlab.com/gitlab-org/gitlab/-/issues/451921
https://hackerone.com/reports/2431597

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