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An attacker can craft an issuer such as <a href=\"https://ci.eclipse.org@evil.host\" rel=\"nofollow noreferrer noopener\" target=\"_blank\">https://ci.eclipse.org@evil.host</a> (userinfo trick) or <a href=\"https://ci.eclipse.org.evil.host\" rel=\"nofollow noreferrer noopener\" target=\"_blank\">https://ci.eclipse.org.evil.host</a> (suffix trick) that satisfies the prefix check while pointing the OIDC discovery and JWKS fetches at a server the attacker controls. An unauthenticated caller of POST /v1/upload/sbom can use this to force PIA to make outbound HTTP(S) requests to an arbitrary attacker-chosen host, and to have oidc.verify_token accept a JWT signed with the attacker's own key."}],"value":"PIA's OIDC issuer allowlist for Jenkins tokens uses a bare string-prefix check (issuer.startswith(' https://ci.eclipse.org ') in is_issuer_known, pia/models.py:139) instead of validating the issuer as a properly host-bounded URL. An attacker can craft an issuer such as  https://ci.eclipse.org@evil.host  (userinfo trick) or  https://ci.eclipse.org.evil.host  (suffix trick) that satisfies the prefix check while pointing the OIDC discovery and JWKS fetches at a server the attacker controls. 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An attacker can craft an issuer such as  https://ci.eclipse.org@evil.host  (userinfo trick) or  https://ci.eclipse.org.evil.host  (suffix trick) that satisfies the prefix check while pointing the OIDC discovery and JWKS fetches at a server the attacker controls. An unauthenticated caller of POST /v1/upload/sbom can use this to force PIA to make outbound HTTP(S) requests to an arbitrary attacker-chosen host, and to have oidc.verify_token accept a JWT signed with the attacker's own key.","Type":"Description","Title":"CVE-2026-14336"}]}}}