CVE-2026-93493 — Io.netty/netty-handler-ssl-ocsp: netty: ocsp validation silently skipped when a response omits the optional nextupdate field
A flaw was found in Netty's `netty-handler-ssl-ocsp` component. A remote attacker can exploit this vulnerability by providing an Online Certificate Status Protocol (OCSP) respon…
Published: 2026-09-18 · CVSS: 5.9 · CVSS 3.1
A flaw was found in Netty's `netty-handler-ssl-ocsp` component. A remote attacker can exploit this vulnerability by providing an Online Certificate Status Protocol (OCSP) response that omits the optional `nextUpdate` field. This omission causes the OCSP validation to be silently skipped, leading to applications proceeding with an unvalidated certificate. This can result in a bypass of security controls where certificate validation is expected.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7