Medium severity5.9NVD Advisory· Published Oct 26, 2026· Updated Oct 26, 2026
CVE-2026-116541
CVE-2026-116541
Description
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.
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Affected products
1- Range: <2.0.84.Final
Patches
Vulnerability mechanics
References
5- github.com/netty/netty-tcnative/blob/netty-tcnative-parent-2.0.83.Final/openssl-dynamic/src/main/c/ssl.cnvd
- github.com/netty/netty-tcnative/commit/e31df4a5885b35085fdfa3e2dca7c1f705d4745bnvd
- github.com/netty/netty-tcnative/releases/tag/netty-tcnative-parent-2.0.84.Finalnvd
- github.com/netty/netty-tcnative/security/advisories/GHSA-9xr3-jwv4-r489nvd
- www.vulncheck.com/advisories/netty-tcnative-before-2.0.84-final-denial-of-service-via-bio-write-overcountnvd
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