GO-2026-5853

vendorUSosv

Fulcio has OIDC Discovery Redirect Following Allows SSRF and JWKS Substitution for Meta-Issuer Paths, with Kubernetes Service-Account Token Leakage in github.com/sigstore/fulcio

view advisory published 2026-07-07Licence: per source

Fulcio has OIDC Discovery Redirect Following Allows SSRF and JWKS Substitution for Meta-Issuer Paths, with Kubernetes Service-Account Token Leakage in github.com/sigstore/fulcio

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-49478US	—	0.28% (21st)	—	2026-08-13
Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) identity. Versions through 1.8.5 improperly follow cross-host redirects and att…

references

External citations — patches, advisories, analysis.

https://github.com/sigstore/fulcio/security/advisories/GHSA-f5mr-q85p-6hh6ADVISORY

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