CVE-2026-116540
mediumnetty-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 ti…
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.
CVSS
5.9
5.9 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-10-26 16:17
Modified: 2026-10-26 17:17
NVD status: Awaiting Analysis
Last synced 3 days ago
Verified against the source API 2026-10-27 07:06 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/netty/netty-tcnative disclosure@vulncheck.com
- https://github.com/netty/netty-tcnative/blob/netty-tcnative-parent-2.0.83.Final/openssl-dy... disclosure@vulncheck.com
- https://github.com/netty/netty-tcnative/commit/59662a8b07a9a7623ae1bc472f5751f31c81a118 disclosure@vulncheck.com
- https://github.com/netty/netty-tcnative/releases/tag/netty-tcnative-parent-2.0.84.Final disclosure@vulncheck.com
- https://github.com/netty/netty-tcnative/security/advisories/GHSA-mmc8-vg2v-fvvw disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/netty-tcnative-2.0.66-final-before-2.0.84-final-use-a... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC · record ↗