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CVE-2026-49478 Fulcio has OIDC Discovery Redirect Following Allows SSRF and JWKS Substitution for Meta-Issuer Paths, with Kubernetes Service-Account Token Leakage

🗓️ 13 Aug 2026 13:08:21Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

Fulcio up to 1.8.5 follows OIDC redirects causing SSRF, JWKS substitution, and Kubernetes token leakage.

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15 Aug 2026 11:46Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.18.7
2