CVE-2026-116540

Name	CVE-2026-116540
Description	netty-tcnative 2.0.66.Final before 2.0.84.Final built against OpenSSL 3.x contains a use-after-free vulnerability in ssl_tlsext_ticket_key_cb during session ticket key rotation. Remote clients performing TLS handshakes while setSessionTicketKeys0 frees the shared key array cause OpenSSL to read freed HMAC keys, crashing or corrupting ticket processing.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
netty-tcnative (PTS)	forky, sid, bookworm, trixie	2.0.28-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
netty-tcnative	source	(unstable)	(unfixed)

Notes

https://github.com/netty/netty-tcnative/security/advisories/GHSA-mmc8-vg2v-fvvw
Fixed by: https://github.com/netty/netty-tcnative/commit/59662a8b07a9a7623ae1bc472f5751f31c81a118 (netty-tcnative-parent-2.0.84.Final)