Vulnerability · Published Nov 4, 2021 · Assigned by GitLab

CVE-2021-39904

Medium 4.3

In plain English

A medium-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 0.8% (higher than 58% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.8%top 42.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

An Improper Access Control vulnerability in the GraphQL API in all versions of GitLab CE/EE starting from 13.1 before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 allows a Merge Request creator to resolve discussions and apply suggestions after a project owner has locked the Merge Request

Affected products (as reported)

Vendor	Product	Versions
GitLab	GitLab	>=13.1, <14.2.6>=14.3, <14.3.4>=14.4, <14.4.1

References

https://gitlab.com/gitlab-org/gitlab/-/issues/295298 x_refsource_MISC
https://hackerone.com/reports/1063420 x_refsource_MISC
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39904.json x_refsource_CONFIRM