CVE-2021-39868

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-10-04 · updated 2026-06-17
Weakness: CWE-732

Description

In all versions of GitLab CE/EE since version 8.12, an authenticated low-privileged malicious user may create a project with unlimited repository size by modifying values in a project export.

Affected products

GitLab: from 8.12.0 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-2021-39868.json
https://gitlab.com/gitlab-org/gitlab/-/issues/24649
https://hackerone.com/reports/420258
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39868.json
https://gitlab.com/gitlab-org/gitlab/-/issues/24649
https://hackerone.com/reports/420258

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