CVE-2026-22772 (GCVE-0-2026-22772)
Vulnerability from cvelistv5
Published
2026-01-12 20:58
Modified
2026-01-12 21:17
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Summary
Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) identity. Prior to 1.8.5, Fulcio's metaRegex() function uses unanchored regex, allowing attackers to bypass MetaIssuer URL validation and trigger SSRF to arbitrary internal services. Since the SSRF only can trigger GET requests, the request cannot mutate state. The response from the GET request is not returned to the caller so data exfiltration is not possible. A malicious actor could attempt to probe an internal network through Blind SSRF. This vulnerability is fixed in 1.8.5.
Impacted products
Vendor Product Version
sigstore fulcio Version: < 1.8.5
Create a notification for this product.
Show details on NVD website


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