CVE-2026-45674
8.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| netty | netty | >= 4.2.0.Final, < 4.2.15.Final | affected |
| netty | netty | < 4.1.135.Final | affected |
Weaknesses
- CWE-345: CWE-345: Insufficient Verification of Data Authenticity
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
netty-resolver-dns: Netty: Information disclosure and data manipulation due to improper CNAME record validation
Additional References
- https://access.redhat.com/security/cve/CVE-2026-45674
- https://bugzilla.redhat.com/show_bug.cgi?id=2488400
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45674.json
- https://access.redhat.com/errata/RHSA-2026:26586
- https://access.redhat.com/errata/RHSA-2026:26018
- https://access.redhat.com/errata/RHSA-2026:26017
- https://access.redhat.com/errata/RHSA-2026:34608
References
- https://github.com/netty/netty/security/advisories/GHSA-676x-f7gg-47vc
- https://github.com/netty/netty/releases/tag/netty-4.1.135.Final
- https://github.com/netty/netty/releases/tag/netty-4.2.15.Final
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