Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-45674

42
FAUCET Score

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.

First published: Jun 12, 2026Last modified: Jun 12, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 4.1.135CPE matchmatch criteria
cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*
>= 4.2.0, < 4.2.15CPE matchmatch criteria
cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.7HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
5.8
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
13.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 1st percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

mavenpatch availablevia ghsa
Product: io.netty:netty-resolver-dnsFixed in: 4.2.15.Final
mavenpatch availablevia ghsa
Product: io.netty:netty-resolver-dnsFixed in: 4.1.135.Final
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

mavenGHSA-676x-f7gg-47vchigh

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

Jun 8, 2026

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 / security/cve/CVE-2026-45674
bugzilla.redhat.com / show_bug.cgi
security.access.redhat.com / data/csaf/v2/vex/2026/cve-2026-45674.json
github.com / netty/netty/releases/tag/netty-4.1.135.Final
Release Notes
github.com / netty/netty/releases/tag/netty-4.2.15.Final
Release Notes
github.com / netty/netty/security/advisories/GHSA-676x-f7gg-47vc
Vendor Advisory