8.2
High
CVE-2026-116541 Netty netty-tcnative before 2.0.84.Final contains a denial of service vulnerability in the tcn_write_to_bytebuffer BIO…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| netty-tcnative 2.0 | earliest → < 2.0.84.Final | 2.0.84.Final |
| netty-tcnative-boringssl-static 2.0 | earliest → < 2.0.84.Final | 2.0.84.Final |
References
- GitHub Security Advisory (GHSA-9xr3-jwv4-r489) github.com
- Patch Commit github.com
- github.com github.com
- netty-tcnative netty-tcnative-parent-2.0.84.Final Release Notes github.com
- github.com github.com
- VulnCheck Advisory: netty-tcnative before 2.0.84.Final Denial of Service via BIO Write Overcount www.vulncheck.com
Timeline
- Published
- Last modified
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