CVE-2021-22218

Name: CVE-2021-22218
Creator: NVD / NIST
Published: 2021-06-08T16:15:13.53+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.6/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2021-22218 is a low-severity vulnerability rated 2.6/10 on the CVSS scale. 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.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

2.6/10

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N

EPSS Probability

0.46%

36.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 12.8.0, < 13.10.5
Gitlab	Gitlab	>= 13.11.0, < 13.11.5
Gitlab	Gitlab	>= 13.12.0, < 13.12.2

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22218.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/297665Broken Link
https://hackerone.com/reports/1077019Permissions Required, Third Party Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22218.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/297665Broken Link
https://hackerone.com/reports/1077019Permissions Required, Third Party Advisory

Timeline

Published: Jun 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22218?

How severe is CVE-2021-22218?

CVE-2021-22218 has a CVSS score of 2.6/10 (LOW severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22218?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22218?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST