CVE-2026-18353

PIA's POST /v1/upload/sbom endpoint accepts a Bearer JWT and checks its unverified iss claim against an issuer allowlist using Python's urlparse before performing OIDC discovery with requests. Because urlparse and requests/urllib3 parse an authority string containing a backslash e.g...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: spire1.14: spire1.14-1.14.7-0.2.hum1 aarch64, x8664 spire1.14-agent-1.14.7-0.2.hum1 aarch64, x8664 spire1.14-oidc-discovery-provider-1.14.7-0.2.hum1 aarch64, x8664 spire1.14-server-1.14.7-0.2.hum...

GO-2026-5853 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

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...

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

Impact Three security vulnerabilities were identified in the OIDC Discovery client: 1. Blind Server-Side Request Forgery SSRF via Cross-Host Redirects: Fulcio uses an HTTP client to fetch OIDC discovery metadata /.well-known/openid-configuration. Prior to this fix, if a configured issuer returned...