Security Advisory

CVE-2026-22772

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-01-12 20:58:53

Last updated 2026-01-12 21:17:31

Assigner GitHub_M

State PUBLISHED

Description

Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) identity. Prior to 1.8.5, Fulcios 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.

← Browse all CVEs View on cve.org ↗