Insufficient Verification of Data Authenticity Affecting io.netty:netty-resolver-dns package, versions [,4.1.135.Final)[4.2.0.Final,4.2.15.Final)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-IONETTY-17262734
- published9 Jun 2026
- disclosed8 Jun 2026
- creditVioleta Georgieva
Introduced: 8 Jun 2026
CVE-2026-45674 (opens in a new tab)How to fix?
Upgrade io.netty:netty-resolver-dns to version 4.1.135.Final, 4.2.15.Final or higher.
Overview
Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity due to missing validation of the origin of CNAME records in DNS responses within the DnsResolveContext function. An attacker can inject unauthorized DNS records by supplying malicious DNS responses, potentially leading to cache poisoning and redirection of network traffic.