Vulnerability · Published Jun 8, 2021 · Assigned by GitLab

CVE-2021-22218

Low 2.6

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 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)2.6Low

Exploit odds (30 days)0.5%top 59.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

All versions of GitLab CE/EE starting from 12.8 before 13.10.5, all versions starting from 13.11 before 13.11.5, and all versions starting from 13.12 before 13.12.2 were affected by an issue in the handling of x509 certificates that could be used to spoof author of signed commits.

Affected products (as reported)

Vendor	Product	Versions
GitLab	GitLab	>=12.8, <13.10.5>=13.11, <13.11.5>=13.12, <13.12.2

References

https://gitlab.com/gitlab-org/gitlab/-/issues/297665 x_refsource_MISC
https://hackerone.com/reports/1077019 x_refsource_MISC
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22218.json x_refsource_CONFIRM