GitLab Server-Side Request Forgery (SSRF) Vulnerability
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
6.8
53.4%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
- Published
- Jun 11, 2021
- Modified
- Feb 19, 2026
- Added to KEV
- Feb 18, 2026
- Federal patch due
- Mar 11, 2026
CISA 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.
Weakness classification
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2021-22175, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2021-22175 were found at last check. Absence here is not proof no exploit exists - see the references below for vendor advisories and write-ups.
References
Frequently asked questions
What is CVE-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
How severe is CVE-2021-22175?
CVE-2021-22175 has a CVSS base score of 6.8 out of 10 (CVSS 3.1).
Is CVE-2021-22175 actively exploited in the wild?
Yes. CVE-2021-22175 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Feb 18, 2026, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2021-22175?
53.4% - meaning FIRST.org's EPSS model estimates a 53.4% probability this vulnerability will be exploited in the wild within 30 days (99% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2021-22175?
Yes - a public Nuclei template referencing CVE-2021-22175 exist in public repositories we checked.
What type of vulnerability is CVE-2021-22175?
CVE-2021-22175 is classified under CWE-918 (CWE-918 Server-Side Request Forgery (SSRF)).
Cross-checked against
Impactr finds and proves whether CVE-2021-22175 - or flaws like it - are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.
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