CVE-2021-22175
GitLab Server-Side Request Forgery (SSRF) Vulnerability
Published Jun 11, 2021 · updated Oct 1, 2026 · GitLab GitLab
When requests to the internal network for webhooks are enabled, a server-side request forgery vulnerability in GitLab affecting all versions starting from 10.5 was possible to exploit for an unauthenticated attacker even on a GitLab instance where registration is disabled
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Jun 11, 2021 · Catalog
Detected
When requests to the internal network for webhooks are enabled, a server-side request forgery vulnerability in GitLab affecting all versions starting from 10.5 was possible to exploit for an unauthenticated attacker even on a GitLab instance where registration is disabled
Feb 18, 2026 · CISA KEV
Known exploited
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Mar 11, 2026 · CISA KEV
Remediation due
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Oct 1, 2026 · Catalog
Updated
When requests to the internal network for webhooks are enabled, a server-side request forgery vulnerability in GitLab affecting all versions starting from 10.5 was possible to exploit for an unauthenticated attacker even on a GitLab instance where registration is disabled
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date Mar 11, 2026
Affected
- cpe gitlab/gitlabversion unspecified
- vendor GitLab GitLabversion unspecified
Sources
- CISA KEVConfirmed exploitationCVE-2021-22175
GitLab contains a server-side request forgery (SSRF) vulnerability when requests to the internal network for webhooks are enabled.
cisa.gov - CVE.orgVulnerability recordCVE-2021-22175
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2021-22175
30-day exploitation probability 53.4%
first.org - NIST NVDVulnerability recordCVE-2021-22175
When requests to the internal network for webhooks are enabled, a server-side request forgery vulnerability in GitLab affecting all versions starting from 10.5 was possible to exploit for an unauthenticated attacker even on a GitLab instance where registration is disabled
nvd.nist.gov