{"id":"CVE-2026-116540","revision":"02feb611d88b400f8ee3302f98ccfa57","records":[{"revision":"02feb611d88b400f8ee3302f98ccfa57","observedAt":"2026-10-26T17:35:31.029+00:00","statement":{"source":"cve-program","id":"CVE-2026-116540","aliases":[],"title":"netty-tcnative 2.0.66.Final before 2.0.84.Final Use-After-Free in Session Ticket Callback","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.","state":0,"publishedAt":"2026-10-26T14:59:40.154+00:00","modifiedAt":"2026-10-26T16:15:16.184+00:00","affected":[{"ecosystem":"https://repo1.maven.org/maven2/io/netty/netty-tcnative/","name":"io.netty:netty-tcnative","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"netty\",\n                    \"product\": \"netty-tcnative\",\n                    \"collectionURL\": \"https://repo1.maven.org/maven2/io/netty/netty-tcnative/\",\n                    \"packageName\": \"io.netty:netty-tcnative\",\n                    \"repo\": \"https://github.com/netty/netty-tcnative\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:maven/io.netty/netty-tcnative\",\n                    \"versions\": [\n                        {\n                            \"version\": \"2.0.66.Final\",\n                            \"lessThan\": \"2.0.84.Final\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":8.2,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.9,"severity":"MEDIUM"}],"references":["https://github.com/netty/netty-tcnative/security/advisories/GHSA-mmc8-vg2v-fvvw","https://github.com/netty/netty-tcnative/commit/59662a8b07a9a7623ae1bc472f5751f31c81a118","https://github.com/netty/netty-tcnative/blob/netty-tcnative-parent-2.0.83.Final/openssl-dynamic/src/main/c/sslcontext.c#L1365","https://github.com/netty/netty-tcnative/releases/tag/netty-tcnative-parent-2.0.84.Final","https://github.com/netty/netty-tcnative","https://www.vulncheck.com/advisories/netty-tcnative-2.0.66-final-before-2.0.84-final-use-after-free-in-session-ticket-callback"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116540","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-116540","identifiers":["CVE-2026-116540"]},"retained":false,"historicalAffected":[]}],"coverage":[]}