CVE-2025-66506

CVE-2025-66506 affects Fulcio prior to 1.8.3. The identity.extractIssuerURL function splits the untrusted OIDC identity token on periods, which can incur O(n) memory allocations when receiving tokens with many dots. This could lead to resource consumption under malicious input. The issue is fixed...

CVE-2026-22772

Fulcio (OIDC code-signing CA) prior to 1.8.5 uses an unanchored regex in metaRegex(), allowing an attacker to bypass MetaIssuer URL validation and trigger Server-Side Request Forgery (SSRF) to internal services. The vulnerability can enable blind SSRF probes to internal networks or services reach...