CVE-2026-100665
Netty versions from 4.2.11.Final before 4.2.18.Final contain an incomplete hostname verification fix in the QUIC certificate verification pa
CVSS
7.5
Alto
EPSS
0.4%
p30
KEV
—
Exploit Today
9
0-100
Publicado: 26 sept 2026 · Última mod.: 2 oct 2026 · CWE-295
Netty versions from 4.2.11.Final before 4.2.18.Final contain an incomplete hostname verification fix in the QUIC certificate verification path when using a plain X509TrustManager. The BoringSSLCertificateVerifyCallback discards the SSLEngine for plain trust managers, preventing endpoint identification from running even when HTTPS verification is configured. Attackers on the network path can present a certificate chain for the wrong hostname that the plain trust manager accepts, bypassing hostname authentication for QUIC clients.
- github.comhttps://github.com/netty/netty/commit/09e72c4fd8007277121ed48db63a124b112b96fe
- github.comhttps://github.com/netty/netty/commit/994e887ed9
- github.comhttps://github.com/netty/netty/security/advisories/GHSA-mj35-3qqm-q387
- www.vulncheck.comhttps://www.vulncheck.com/advisories/netty-4.2.11-through-4.2.17-quic-hostname-verification-bypass
- github.comhttps://github.com/netty/netty/security/advisories/GHSA-mj35-3qqm-q387