Update: CVE-2026-22772 - Fulcio vulnerable to Server-Side Request Forgery (SSRF) via MetaIssuer Regex Bypass

Update: CVE-2026-22772 - Fulcio vulnerable to Server-Side Request Forgery (SSRF) via MetaIssuer Regex Bypass

CVE ID : CVE-2026-22772 Published : Jan. 12, 2026, 9:15 p.m. | 1 hour, 33 minutes ago Description : 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. Severity: 5.8 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Severity
MEDIUM
Published
Jan. 12, 2026
Attack Vector: network
Impact: SSRF

Source: Telegram CVE Monitor