CVE-2026-45674

Netty Vulnerable to DNS Cache Poisoning via Missing Bailiwick Checks in CNAME Records

CVSS 8.7 HIGHEPSS 0.2%CWE-345

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, Netty's DnsResolveContext fails to validate the origin (bailiwick) of CNAME records in DNS responses. Versions 4.1.135.Final and 4.2.15.Final patch the issue.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Affected products

netty · netty

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References

https://github.com/netty/netty/releases/tag/netty-4.1.135.Final https://github.com/netty/netty/releases/tag/netty-4.2.15.Final https://github.com/netty/netty/security/advisories/GHSA-676x-f7gg-47vc