CVE-2021-39875

Severity: medium (CVSS 5.3 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: 2021-10-05 · updated 2026-06-17

Description

In all versions of GitLab CE/EE since version 13.6, it is possible to see pending invitations of any public group or public project by visiting an API endpoint.

Affected products

GitLab: from 13.6.0 before 14.1.7; from 14.2.0 before 14.2.5; 4.3.0 — fixed in 14.1.7, 14.2.5

How to fix

Upgrade to a fixed version: GitLab 14.1.7, 14.2.5. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39875.json
https://gitlab.com/gitlab-org/gitlab/-/issues/290985
https://hackerone.com/reports/1048259
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39875.json
https://gitlab.com/gitlab-org/gitlab/-/issues/290985
https://hackerone.com/reports/1048259

Get alerted when CVE-2021-39875 or the next vulnerability affects your stack