CVE-2026-45674: Netty Vulnerable to DNS Cache Poisoning via Missing Bailiwick Checks in CNAME Records
(updated )
Netty’s DnsResolveContext fails to validate the origin (bailiwick) of CNAME records in DNS responses.
References
- access.redhat.com/errata/RHSA-2026:26017
- access.redhat.com/errata/RHSA-2026:26018
- access.redhat.com/errata/RHSA-2026:26586
- access.redhat.com/errata/RHSA-2026:34608
- access.redhat.com/errata/RHSA-2026:37390
- access.redhat.com/errata/RHSA-2026:41951
- access.redhat.com/errata/RHSA-2026:48151
- access.redhat.com/errata/RHSA-2026:49700
- access.redhat.com/errata/RHSA-2026:49701
- access.redhat.com/errata/RHSA-2026:50085
- access.redhat.com/errata/RHSA-2026:53644
- access.redhat.com/errata/RHSA-2026:53645
- access.redhat.com/errata/RHSA-2026:53646
- access.redhat.com/errata/RHSA-2026:53806
- access.redhat.com/errata/RHSA-2026:54435
- access.redhat.com/errata/RHSA-2026:62260
- access.redhat.com/errata/RHSA-2026:65126
- access.redhat.com/security/cve/CVE-2026-45674
- bugzilla.redhat.com/show_bug.cgi?id=2488400
- github.com/advisories/GHSA-676x-f7gg-47vc
- github.com/netty/netty/releases/tag/netty-4.1.135.Final
- github.com/netty/netty/releases/tag/netty-4.2.15.Final
- github.com/netty/netty/security/advisories/GHSA-676x-f7gg-47vc
- nvd.nist.gov/vuln/detail/CVE-2026-45674
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45674.json
Code Behaviors & Features
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