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io.netty/netty-codec-dns 4.1.132.Final | V… | Sonatype Guide
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maven
io.netty
netty-codec-dns
4.1.132.Final
netty-codec-dns 4.1.132.Final
io.netty
Published
Mar 24, 2026
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9.1
CVE-2026-42579
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
Severity
Critical
Published
May 7, 2026
