CVE-2026-42579

high Red Hat
CVSS v3 Base Score
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS Score
0.0%
Exploitation probability in 30 days
Top 90% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
High
Availability
None
Published: May 13, 2026 (57 days ago)
Last Modified: May 13, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in Netty. Netty's DNS (Domain Name System) codec does not properly enforce domain name constraints as defined in RFC 1035 during both encoding and decoding processes. This vulnerability allows a remote attacker to exploit the decoder using malicious DNS responses or exploit the encoder through user-influenced hostnames, leading to a high integrity impact on the affected system.

CWE

CWE-1286

Affected Products

Cryostat 4OpenShift ServerlessRed Hat build of Apache Camel 4 for Quarkus 3Red Hat build of Apache Camel for Spring Boot 4Red Hat build of Apicurio Registry 2Red Hat build of Apicurio Registry 3Red Hat build of Debezium 3Red Hat Build of KeycloakRed Hat build of OptaPlanner 8Red Hat build of Quarkus

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com