cvedb.io
CVE-2026-42579
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-05-13T19:17:23.353 · Last modified 2026-06-30T03:19:40.080

Summary

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's DNS codec does not enforce RFC 1035 domain name constraints during either encoding or decoding. This creates a bidirectional attack surface: malicious DNS responses can exploit the decoder, and user-influenced hostnames can exploit the encoder. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.

Affected products

netty — netty

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.