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CVE-2021-22175: GitLab Server-Side Request Forgery (SSRF) Vulnerability

criticalknown exploitedpublic exploitCVE-2021-22175
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
GitLab contains a server-side request forgery (SSRF) vulnerability when requests to the internal network for webhooks are enabled.

CSIRTS triage

What
A server-side request forgery vulnerability allows requests to the internal network.
Who is affected
Users of GitLab with webhooks enabled.
Urgency
Remediation is urgent due to the critical nature of the vulnerability.
Action
Update GitLab to the latest version.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-02-18
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-22175

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-22175coverage & exploitation statusNVD · CVE.org

Recent advisories for GitLab Server-Side Request

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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