CVE-2026-116541: fallo de gravedad alta en netty-tcnative
netty-tcnative before 2.0.84.Final Denial of Service via BIO Write Overcount
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.2epss 0.5%
Netty netty-tcnative before 2.0.84.Final contains a denial of service vulnerability in the tcn_write_to_bytebuffer BIO write callback that overreports bytes consumed. Remote TLS 1.3 peers can provoke queued post-handshake records like NewSessionTicket or KeyUpdate to truncate flights, fail connections, or abort the JVM process.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVEs relacionadas — netty-tcnative
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CVE-2026-116540HIGHnetty-tcnative 2.0.66.Final before 2.0.84.Final Use-After-Free in Session Ticket CallbackEPSS 0.5%CVE-2026-116539HIGHNetty netty-tcnative before 2.0.84.Final Heap Buffer Overflow via OpenSSL BIOEPSS 0.4%CVE-2026-116542MEDIUMNetty netty-tcnative before 2.0.84.Final SNI Hostname Spoofing via Modified UTF-8 DecodingEPSS 0.2%
Referencias
https://github.com/netty/netty-tcnativehttps://github.com/netty/netty-tcnative/blob/netty-tcnative-parent-2.0.83.Final/openssl-dynamic/src/main/c/ssl.c#L240https://github.com/netty/netty-tcnative/commit/e31df4a5885b35085fdfa3e2dca7c1f705d4745bhttps://github.com/netty/netty-tcnative/releases/tag/netty-tcnative-parent-2.0.84.Finalhttps://github.com/netty/netty-tcnative/security/advisories/GHSA-9xr3-jwv4-r489https://www.vulncheck.com/advisories/netty-tcnative-before-2.0.84-final-denial-of-service-via-bio-write-overcount