CVE-2026-56822

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, the OcspServerCertificateValidator forwards the SslHandshakeCompletionEvent before the asynchronous OCSP validation completes. This allows the client's downstream handlers to se...

CVE-2026-56822 Netty: TOCTOU in OcspServerCertificateValidator

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, the OcspServerCertificateValidator forwards the SslHandshakeCompletionEvent before the asynchronous OCSP validation completes. This allows the client's downstream handlers to se...

CVE-2026-56822

CVE-2026-56822 affects Netty’s OcspServerCertificateValidator. The TOCTOU race forwards SslHandshakeCompletionEvent before OCSP validation finishes, potentially allowing downstream handlers to send data to a revoked server before the OCSP check closes the channel. Affected releases: prior to 4.1....

CVE-2026-56822

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, the OcspServerCertificateValidator forwards the SslHandshakeCompletionEvent before the asynchronous OCSP validation completes. This allows the client's downstream handlers to se...

Netty: TOCTOU in OcspServerCertificateValidator

Summary Netty's OcspServerCertificateValidator forwards the SslHandshakeCompletionEvent before the asynchronous OCSP validation completes. This allows the client's downstream handlers to send sensitive application data e.g., HTTP requests to a revoked server before the channel is closed by the OC...

PT-2026-63545

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.136.Final Netty versions prior to 4.2.16.Final Description The OcspServerCertificateValidator forwards the SslHandshakeCompletionEvent before the asynchronous Online Certificate Status Protocol OCSP validation...