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Home/Vulnerability/CVE-2026-45674

CVE-2026-45674

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

Published: Jun 12, 2026Updated: Jun 12, 2026 Sources: CVE List NVD
NVD MITRE
8.7CVSS
HIGH

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.

EPSS Score
0.0%
Top 96.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:CC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None

Weaknesses

CWE-345

Affected Products

netty
netty
OSS Libraries / generic-library
nettyoss-projectOSS Librariesaka io.netty:netty, netty-incubator-codec-ohttp

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

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

Timeline

Published
Jun 12, 2026
Last Updated
Jun 12, 2026

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