HIGH 8.2 NVD
CVE-2026-116539
Netty netty-tcnative before 2.0.84.Final contains a heap buffer overflow vulnerability in the tcn_write_to_bytebuffer BIO callback caused by failing to wrap the
Netty netty-tcnative before 2.0.84.Final contains a heap buffer overflow vulnerability in the tcn_write_to_bytebuffer BIO callback caused by failing to wrap the non-application ring buffer write index. Remote TLS peers can drive handshake, renegotiation, or post-handshake messages into this buffer, triggering an out-of-bounds memcpy that crashes the JVM process.
References
- https://github.com/netty/netty-tcnative
- https://github.com/netty/netty-tcnative/blob/netty-tcnative-parent-2.0.83.Final/openssl-dy
- https://github.com/netty/netty-tcnative/commit/92dd66fd1243d85c05a61288f96367a70260b6b8
- https://github.com/netty/netty-tcnative/releases/tag/netty-tcnative-parent-2.0.84.Final
- https://github.com/netty/netty-tcnative/security/advisories/GHSA-gf9q-9mg7-g5qh
This high severity vulnerability with a CVSS score of 8.2 was published on 2026-10-26 via NVD.
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