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CVE-2026-56821

1 advisory.

Maven/io.netty:netty-handler-ssl-ocsp CVE-2026-56821: high 7.4, EPSS 0.22%

Netty: Out-of-date OCSP Responses Accepted by OcspServerCertificateValidator

Action: Upgrade io.netty:netty-handler-ssl-ocsp to 4.1.136.Final (4.1.x) or 4.2.16.Final (4.2.x) or later.

Affected

introducedfixedlast affected
4.2.0.Final4.2.16.Final-
04.1.136.Final-

Fixed versions

4.2.16.Final4.1.136.Final

Sources

CVE-2026-56821 · published · modified · JSON