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netty-resolver-dns: Netty: Information disclosure and data manipulation due to improper CNAME record validation

🗓️ 03 Aug 2026 15:45:22Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 6 Views

Flaw in Netty DnsResolveContext allows information disclosure and data manipulation via CNAME origin validation

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8noarcheap8-eap-product-conf-parent801.7.1-1.GA_redhat_00001.1.el8eapeap8-eap-product-conf-parent-801.7.1-1.GA_redhat_00001.1.el8eap.noarch.rpm
Red Hat Enterprise Linux9noarcheap8-eap-product-conf-parent801.7.1-1.GA_redhat_00001.1.el9eapeap8-eap-product-conf-parent-801.7.1-1.GA_redhat_00001.1.el9eap.noarch.rpm
Red Hat Enterprise Linux10noarcheap8-eap-product-conf-parent801.7.1-1.GA_redhat_00001.1.el10eapeap8-eap-product-conf-parent-801.7.1-1.GA_redhat_00001.1.el10eap.noarch.rpm
Red Hat Enterprise Linux8noarcheap8-eap-product-conf-wildfly-ee-feature-pack801.7.1-1.GA_redhat_00001.1.el8eapeap8-eap-product-conf-wildfly-ee-feature-pack-801.7.1-1.GA_redhat_00001.1.el8eap.noarch.rpm
Red Hat Enterprise Linux9noarcheap8-eap-product-conf-wildfly-ee-feature-pack801.7.1-1.GA_redhat_00001.1.el9eapeap8-eap-product-conf-wildfly-ee-feature-pack-801.7.1-1.GA_redhat_00001.1.el9eap.noarch.rpm
Red Hat Enterprise Linux10noarcheap8-eap-product-conf-wildfly-ee-feature-pack801.7.1-1.GA_redhat_00001.1.el10eapeap8-eap-product-conf-wildfly-ee-feature-pack-801.7.1-1.GA_redhat_00001.1.el10eap.noarch.rpm
Red Hat Enterprise Linux8noarcheap8-jose4j0.9.6-2.redhat_00002.1.el8eapeap8-jose4j-0.9.6-2.redhat_00002.1.el8eap.noarch.rpm
Red Hat Enterprise Linux9noarcheap8-jose4j0.9.6-2.redhat_00002.1.el9eapeap8-jose4j-0.9.6-2.redhat_00002.1.el9eap.noarch.rpm
Red Hat Enterprise Linux8noarcheap8-netty4.1.135-1.Final_redhat_00001.1.el8eapeap8-netty-4.1.135-1.Final_redhat_00001.1.el8eap.noarch.rpm
Red Hat Enterprise Linux9noarcheap8-netty4.1.135-1.Final_redhat_00001.1.el9eapeap8-netty-4.1.135-1.Final_redhat_00001.1.el9eap.noarch.rpm
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19 Aug 2026 11:04Current
7.4High risk
Vulners AI Score7.4
CVSS 3.18.7 - 10
EPSS0.00248
SSVC
CWE-346
NettyDomain Name SystemCNAME validationBailiwick validationInformation disclosureData manipulationDomain name responsesRemote attacker
6