CVE-2026-45674GHSA-676X-F7GG-47VC
Netty Vulnerable to DNS Cache Poisoning via Missing Bailiwick Checks in CNAME Records
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 4.2.15.Final, 4.1.135.Final
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- 1 proof of concept on GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- netty netty
From 4.2.0.Final · fixed in 4.2.15.Final; fixed in 4.1.135.Final
- io.netty:netty-resolver-dnsMaven
From 4.2.0.Final · fixed in 4.2.15.Final
- io.netty:netty-resolver-dnsMaven
fixed in 4.1.135.Final