io.netty/netty-handler-ssl-ocsp: Netty: Certificate revocation bypass via OCSP response replay attack

A flaw was found in Netty. The OcspClient component fails to validate that the Certificate ID in an Online Certificate Status Protocol OCSP response matches the requested Certificate ID. This vulnerability allows a remote attacker to bypass certificate revocation checks by presenting a legitimate...

CVE-2026-56820 Netty: Missing CertificateID Validation in OCSP Response Allows Replay Attacks

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and prior to 4.1.135.Final, OcspClient does not validate that the CertificateID in an OCSP response matches the requested CertificateID, which can lead to replay...