Vulnerability · Published Dec 13, 2021 · Assigned by GitLab

CVE-2021-39945

Low 2.7

In plain English

A low-severity security flaw in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities).

Severity (CVSS 3.1)2.7Low

Exploit odds (30 days)0.9%top 39.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Improper access control in the GitLab CE/EE API affecting all versions starting from 9.4 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an author of a Merge Request to approve the Merge Request even after having their project access revoked

Affected products (as reported)

Vendor	Product	Versions
GitLab	GitLab	>=14.5, <14.5.2>=14.4, <14.4.4>=9.4, <14.3.6

References

https://gitlab.com/gitlab-org/gitlab/-/issues/331675 x_refsource_MISC
https://hackerone.com/reports/1198317 x_refsource_MISC
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39945.json x_refsource_CONFIRM