CVE-2026-45674
Published:June 12, 2026
Updated:June 13, 2026
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 Packages
https://github.com/netty/netty.git (GITHUB):
Affected version(s) >=netty-4.2.0.Final <netty-4.2.15.FinalFix Suggestion:
Update to version netty-4.2.15.Finalhttps://github.com/netty/netty.git (GITHUB):
Affected version(s) >=netty-4.0.0.Alpha1 <netty-4.1.135.FinalFix Suggestion:
Update to version netty-4.1.135.Finalio.netty:netty-resolver-dns (JAVA):
Affected version(s) >=4.2.0.Final <4.2.15.FinalFix Suggestion:
Update to version 4.2.15.Finalio.netty:netty-resolver-dns (JAVA):
Affected version(s) >=4.1.0.Beta4 <4.1.135.FinalFix Suggestion:
Update to version 4.1.135.FinalRelated Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.4
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Insufficient Verification of Data Authenticity
EPSS
Base Score:
0.01