GitLab Server-Side Request Forgery (SSRF) Vulnerability

Are you affected?

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• cpe gitlab/gitlabversion unspecified
• vendor GitLab GitLabversion unspecified

How to fix CVE-2021-22175

• Recommended remediation

  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.

• Official advisories

  • CISA KEV · cisa.gov
  • CVE.org · cve.org
  • FIRST EPSS · first.org
  • NIST NVD · nvd.nist.gov
  • VulnCheck KEV · vulncheck.com

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Code

The project this record applies to. Exploit listings stay in References.

• Repository · gitlab.com

Timeline

Detection, updates, and resolution for this record.

1. 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

2. 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.

3. 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.

4. 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

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
• VulnCheck KEVConfirmed exploitationCVE-2021-22175

  GitLab contains a server-side request forgery (SSRF) vulnerability when requests to the internal network for webhooks are enabled.

  vulncheck.com

References

• VulnCheck exploitation evidence · app.crowdsec.net
• CISA note · gitlab.com
• Exploit · gitlab.com
• Permissions Required · hackerone.com
• CISA note · nvd.nist.gov
• US Government Resource · cisa.gov
• VulnCheck exploitation evidence · cisa.gov
• VulnCheck exploitation evidence · greynoise.io

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.