CVE-2021-22177

4.3 mediumEPSS 1.2%

Medium (4.3) in gitlab gitlab. EPSS 1.2% chance of exploitation in the next 30 days.

Potential DoS was identified in gitlab-shell in GitLab CE/EE version 12.6.0 or above, which allows an attacker to spike the server resource utilization via gitlab-shell command.

Severity

CVSS 3.1

4.3 medium

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

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
CWE: CWE-400
Published: 2021-04-01
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

gitlab:gitlab

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22177.json
https://gitlab.com/gitlab-org/gitlab/-/issues/238988
https://hackerone.com/reports/953444
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22177.json
https://gitlab.com/gitlab-org/gitlab/-/issues/238988

Check your stack JSON