Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, io.netty.handler.codec.dns.AbstractDnsRecord, io.netty.handler.codec.dns.DefaultDnsRecordDecoder.decodeRecord(), and io.netty.handler.codec.dns.DnsCodecUtil.decompressDomainName() failed to release retained or newly allocated ByteBuf objects when IDN.toASCII() or encodeDomainName() rejected a malformed domain name, allowing unauthenticated remote DNS packets to leak direct memory incrementally until denial of service. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and
    4.2.16.Final, io.netty.handler.codec.dns.AbstractDnsRecord,
    io.netty.handler.codec.dns.DefaultDnsRecordDecoder.decodeRecord(), and
    io.netty.handler.codec.dns.DnsCodecUtil.decompressDomainName() failed to release retained or newly
    allocated ByteBuf objects when IDN.toASCII() or encodeDomainName() rejected a malformed domain name,
    allowing unauthenticated remote DNS packets to leak direct memory incrementally until denial of service.
    This issue is fixed in versions 4.1.136.Final and 4.2.16.Final. (CVE-2026-73508)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:70228 advisory.

    Red Hat JBoss Enterprise Application Platform 8 is a platform for Java applications based on the WildFly     application runtime. This release of Red Hat JBoss  Enterprise Application Platform 8.1.8 serves as a     replacement for Red Hat JBoss Enterprise Application Platform 8.1.7, and includes bug fixes and     enhancements. See the Red Hat JBoss Enterprise Application Platform 8.1.8 Release Notes for information     about the most significant bug fixes and enhancements included in this release.

    Security Fix(es):

    * jackson-core: jackson-core: Denial of Service via incomplete fix in async JSON parser [eap-8.1.z]     (CVE-2026-68494)

    * netty-codec-http2: Netty: Denial of Service via memory exhaustion in SPDY-to-HTTP codec [eap-8.1.z]     (CVE-2026-56745)

    * netty-handler: Netty: TLS hostname verification bypass via OpenSSL client path misconfiguration     [eap-8.1.z] (CVE-2026-62243)

    * bcpg-jdk18on: Bouncy Castle for Java: Denial of Service due to unbounded OpenPGP user-attribute     subpacket length [eap-8.1.z] (CVE-2026-59649)

    * jackson-databind: jackson-databind: Ignored properties can be unexpectedly modified [eap-8.1.z]     (CVE-2026-54515)

    * jackson-databind: Jackson-databind: Privilege escalation via improper handling of @JsonUnwrapped     properties [eap-8.1.z] (CVE-2026-59889)

    * netty-codec-dns: Netty: Denial of Service via Memory Leak in DNS Record Decoder with Malformed Domain     Names [eap-8.1.z] (CVE-2026-73508)

    * jboss-eap.1-runtime-maven-repository.zip: jackson-core: Denial of Service via incomplete fix in async     JSON parser [eap-8.1.z] (CVE-2026-68494)

    * jboss-eap-runtime-maven-repository.zip: jackson-core: Denial of Service via incomplete fix in async JSON     parser [eap-8.1.z] (CVE-2026-68494)

    * bcprov-jdk18on: unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion [eap-8.1.z]     (CVE-2026-3505)

    * brace-expansion: brace-expansion: Denial of Service via unbounded intermediate arrays [eap-8.1.z]     (CVE-2026-69152)

    * netty-codec-http: Netty: Memory exhaustion in netty-codec-http (decompression bomb) [eap-8.1.z]     (CVE-2026-59899)

    * netty-codec-http: Netty: Security control bypass allows unauthorized requests via null origin header     [eap-8.1.z] (CVE-2026-56746)

    * netty-codec-http: Netty: Denial of Service via memory exhaustion in SPDY-to-HTTP codec [eap-8.1.z]     (CVE-2026-56745)

    * netty-codec-http: Netty: Denial of Service via SPDY SETTINGS frame processing [eap-8.1.z]     (CVE-2026-55831)

    * netty-codec-http: Netty: Denial of Service via SPDY header decompression amplification [eap-8.1.z]     (CVE-2026-55833)

    * jackson-databind: Jackson-databind: Security bypass allows arbitrary code execution [eap-8.1.z]     (CVE-2026-54513)

    * jackson-databind: jackson-databind: Arbitrary code execution via PolymorphicTypeValidator bypass     [eap-8.1.z] (CVE-2026-54512)

    * undertow-core: Undertow:HTTP request smuggling via oversized chunk-size bit overlap [eap-8.1.z]     (CVE-2026-14180)

    * artemis-server: artemis-server: Pre-auth topology disclosure via CORE SUBSCRIBE_TOPOLOGY_V2 on channel0     [eap-8.1.z] (CVE-2026-49363)

    * undertow-websockets-jsr: Undertow: Pre-Auth DoS on websocket endpoint with @ServerEndpoint class with     any @OnMessage method [eap-8.1.z] (CVE-2026-15565)

    * wildfly-iiop-openjdk: Wildfly: Pre-auth denial of service on the IIOP listener [eap-8.1.z]     (CVE-2026-15567)

    * cxf-rt-transports-jms: Apache CXF: Arbitrary code execution via untrusted JMS configuration [eap-8.1.z]     (CVE-2026-50632)

    * cxf-core: Apache CXF: Information disclosure via out-of-band external entity resolution due to missing     JAXP hardening [eap-8.1.z] (CVE-2026-49875)

    * wildfly-elytron-asn1: Unbounded Memory Allocation in WildFly Elytron ASN.1 DERDecoder via Crafted DER     Payload [eap-8.1.z] (CVE-2026-10832)

    * cxf-rt-transports-jms: Apache CXF: Remote Code Execution via untrusted JMS configuration [eap-8.1.z]     (CVE-2026-44417)

    * wildfly-elytron-realm-token: parameter injection in EAP's elytron oauth2 [eap-8.1.z] (CVE-2026-85511)

    * jakarta.faces: mojarra: Unauthenticated RCE in EAP JSF applications via EL injection in ui:include     [eap-8.1.z] (CVE-2026-46581)

    * wildfly-iiop-openjdk: Missing authentication on EAP's IIOP NameService leads to MITM or DoS [eap-8.1.z]     (CVE-2026-15563)

    * jboss-remoting: jboss-remoting: integer overflow in MessageReader leads to pre-authentication denial of     service [eap-8.1.z] (CVE-2026-15562)

    * undertow-core: OOM via missing limits in chunked trailer in EAP's Undertow [eap-8.1.z] (CVE-2026-15561)

    * openjdk-orb: unauthed class loading via IIOP in EAP [eap-8.1.z] (CVE-2026-15560)

    * artemis-server: Apache Artemis  session hijack via missing authentication [eap-8.1.z]     (CVE-2026-57967)

    * wildfly-clustering-infinispan-marshalling: Jboss Deserialization RCE via Unfiltered River Unmarshaller     [eap-8.1.z] (CVE-2026-15555)

    * undertow-core: Undertow: Authentication Bypass via AJP ssl_cert/is_ssl Forgery [eap-8.1.z]     (CVE-2026-15554)

    * jgroups: artemis cluster password leak via jgroups spoof [eap-8.1.z] (CVE-2026-49364)

    * artemis-server: artemis core protocol permits unauthed queue creation [eap-8.1.z] (CVE-2026-49362)

    * artemis-server: artemis messaging handlers in Red Hat EAP permit deserialization by default [eap-8.1.z]     (CVE-2026-86404)

    * undertow-core: Undertow: Denial of Service via WebSocket permessage-deflate processing [eap-8.1.z]     (CVE-2026-5680)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:70230 advisory.

    Red Hat JBoss Enterprise Application Platform 8 is a platform for Java applications based on the WildFly     application runtime. This release of Red Hat JBoss  Enterprise Application Platform 8.1.8 serves as a     replacement for Red Hat JBoss Enterprise Application Platform 8.1.7, and includes bug fixes and     enhancements. See the Red Hat JBoss Enterprise Application Platform 8.1.8 Release Notes for information     about the most significant bug fixes and enhancements included in this release.

    Security Fix(es):

    * jackson-core: jackson-core: Denial of Service via incomplete fix in async JSON parser [eap-8.1.z]     (CVE-2026-68494)

    * netty-codec-http2: Netty: Denial of Service via memory exhaustion in SPDY-to-HTTP codec [eap-8.1.z]     (CVE-2026-56745)

    * netty-handler: Netty: TLS hostname verification bypass via OpenSSL client path misconfiguration     [eap-8.1.z] (CVE-2026-62243)

    * bcpg-jdk18on: Bouncy Castle for Java: Denial of Service due to unbounded OpenPGP user-attribute     subpacket length [eap-8.1.z] (CVE-2026-59649)

    * jackson-databind: jackson-databind: Ignored properties can be unexpectedly modified [eap-8.1.z]     (CVE-2026-54515)

    * jackson-databind: Jackson-databind: Privilege escalation via improper handling of @JsonUnwrapped     properties [eap-8.1.z] (CVE-2026-59889)

    * netty-codec-dns: Netty: Denial of Service via Memory Leak in DNS Record Decoder with Malformed Domain     Names [eap-8.1.z] (CVE-2026-73508)

    * jboss-eap.1-runtime-maven-repository.zip: jackson-core: Denial of Service via incomplete fix in async     JSON parser [eap-8.1.z] (CVE-2026-68494)

    * jboss-eap-runtime-maven-repository.zip: jackson-core: Denial of Service via incomplete fix in async JSON     parser [eap-8.1.z] (CVE-2026-68494)

    * bcprov-jdk18on: unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion [eap-8.1.z]     (CVE-2026-3505)

    * brace-expansion: brace-expansion: Denial of Service via unbounded intermediate arrays [eap-8.1.z]     (CVE-2026-69152)

    * netty-codec-http: Netty: Memory exhaustion in netty-codec-http (decompression bomb) [eap-8.1.z]     (CVE-2026-59899)

    * netty-codec-http: Netty: Security control bypass allows unauthorized requests via null origin header     [eap-8.1.z] (CVE-2026-56746)

    * netty-codec-http: Netty: Denial of Service via memory exhaustion in SPDY-to-HTTP codec [eap-8.1.z]     (CVE-2026-56745)

    * netty-codec-http: Netty: Denial of Service via SPDY SETTINGS frame processing [eap-8.1.z]     (CVE-2026-55831)

    * netty-codec-http: Netty: Denial of Service via SPDY header decompression amplification [eap-8.1.z]     (CVE-2026-55833)

    * jackson-databind: Jackson-databind: Security bypass allows arbitrary code execution [eap-8.1.z]     (CVE-2026-54513)

    * jackson-databind: jackson-databind: Arbitrary code execution via PolymorphicTypeValidator bypass     [eap-8.1.z] (CVE-2026-54512)

    * undertow-core: Undertow:HTTP request smuggling via oversized chunk-size bit overlap [eap-8.1.z]     (CVE-2026-14180)

    * artemis-server: artemis-server: Pre-auth topology disclosure via CORE SUBSCRIBE_TOPOLOGY_V2 on channel0     [eap-8.1.z] (CVE-2026-49363)

    * undertow-websockets-jsr: Undertow: Pre-Auth DoS on websocket endpoint with @ServerEndpoint class with     any @OnMessage method [eap-8.1.z] (CVE-2026-15565)

    * wildfly-iiop-openjdk: Wildfly: Pre-auth denial of service on the IIOP listener [eap-8.1.z]     (CVE-2026-15567)

    * cxf-rt-transports-jms: Apache CXF: Arbitrary code execution via untrusted JMS configuration [eap-8.1.z]     (CVE-2026-50632)

    * cxf-core: Apache CXF: Information disclosure via out-of-band external entity resolution due to missing     JAXP hardening [eap-8.1.z] (CVE-2026-49875)

    * wildfly-elytron-asn1: Unbounded Memory Allocation in WildFly Elytron ASN.1 DERDecoder via Crafted DER     Payload [eap-8.1.z] (CVE-2026-10832)

    * cxf-rt-transports-jms: Apache CXF: Remote Code Execution via untrusted JMS configuration [eap-8.1.z]     (CVE-2026-44417)

    * wildfly-elytron-realm-token: parameter injection in EAP's elytron oauth2 [eap-8.1.z] (CVE-2026-85511)

    * jakarta.faces: mojarra: Unauthenticated RCE in EAP JSF applications via EL injection in ui:include     [eap-8.1.z] (CVE-2026-46581)

    * wildfly-iiop-openjdk: Missing authentication on EAP's IIOP NameService leads to MITM or DoS [eap-8.1.z]     (CVE-2026-15563)

    * jboss-remoting: jboss-remoting: integer overflow in MessageReader leads to pre-authentication denial of     service [eap-8.1.z] (CVE-2026-15562)

    * undertow-core: OOM via missing limits in chunked trailer in EAP's Undertow [eap-8.1.z] (CVE-2026-15561)

    * openjdk-orb: unauthed class loading via IIOP in EAP [eap-8.1.z] (CVE-2026-15560)

    * artemis-server: Apache Artemis  session hijack via missing authentication [eap-8.1.z]     (CVE-2026-57967)

    * wildfly-clustering-infinispan-marshalling: Jboss Deserialization RCE via Unfiltered River Unmarshaller     [eap-8.1.z] (CVE-2026-15555)

    * undertow-core: Undertow: Authentication Bypass via AJP ssl_cert/is_ssl Forgery [eap-8.1.z]     (CVE-2026-15554)

    * jgroups: artemis cluster password leak via jgroups spoof [eap-8.1.z] (CVE-2026-49364)

    * artemis-server: artemis core protocol permits unauthed queue creation [eap-8.1.z] (CVE-2026-49362)

    * artemis-server: artemis messaging handlers in Red Hat EAP permit deserialization by default [eap-8.1.z]     (CVE-2026-86404)

    * undertow-core: Undertow: Denial of Service via WebSocket permessage-deflate processing [eap-8.1.z]     (CVE-2026-5680)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:70229 advisory.

    Red Hat JBoss Enterprise Application Platform 8 is a platform for Java applications based on the WildFly     application runtime. This release of Red Hat JBoss  Enterprise Application Platform 8.1.8 serves as a     replacement for Red Hat JBoss Enterprise Application Platform 8.1.7, and includes bug fixes and     enhancements. See the Red Hat JBoss Enterprise Application Platform 8.1.8 Release Notes for information     about the most significant bug fixes and enhancements included in this release.

    Security Fix(es):

    * jackson-core: jackson-core: Denial of Service via incomplete fix in async JSON parser [eap-8.1.z]     (CVE-2026-68494)

    * netty-codec-http2: Netty: Denial of Service via memory exhaustion in SPDY-to-HTTP codec [eap-8.1.z]     (CVE-2026-56745)

    * netty-handler: Netty: TLS hostname verification bypass via OpenSSL client path misconfiguration     [eap-8.1.z] (CVE-2026-62243)

    * bcpg-jdk18on: Bouncy Castle for Java: Denial of Service due to unbounded OpenPGP user-attribute     subpacket length [eap-8.1.z] (CVE-2026-59649)

    * jackson-databind: jackson-databind: Ignored properties can be unexpectedly modified [eap-8.1.z]     (CVE-2026-54515)

    * jackson-databind: Jackson-databind: Privilege escalation via improper handling of @JsonUnwrapped     properties [eap-8.1.z] (CVE-2026-59889)

    * netty-codec-dns: Netty: Denial of Service via Memory Leak in DNS Record Decoder with Malformed Domain     Names [eap-8.1.z] (CVE-2026-73508)

    * jboss-eap.1-runtime-maven-repository.zip: jackson-core: Denial of Service via incomplete fix in async     JSON parser [eap-8.1.z] (CVE-2026-68494)

    * jboss-eap-runtime-maven-repository.zip: jackson-core: Denial of Service via incomplete fix in async JSON     parser [eap-8.1.z] (CVE-2026-68494)

    * bcprov-jdk18on: unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion [eap-8.1.z]     (CVE-2026-3505)

    * brace-expansion: brace-expansion: Denial of Service via unbounded intermediate arrays [eap-8.1.z]     (CVE-2026-69152)

    * netty-codec-http: Netty: Memory exhaustion in netty-codec-http (decompression bomb) [eap-8.1.z]     (CVE-2026-59899)

    * netty-codec-http: Netty: Security control bypass allows unauthorized requests via null origin header     [eap-8.1.z] (CVE-2026-56746)

    * netty-codec-http: Netty: Denial of Service via memory exhaustion in SPDY-to-HTTP codec [eap-8.1.z]     (CVE-2026-56745)

    * netty-codec-http: Netty: Denial of Service via SPDY SETTINGS frame processing [eap-8.1.z]     (CVE-2026-55831)

    * netty-codec-http: Netty: Denial of Service via SPDY header decompression amplification [eap-8.1.z]     (CVE-2026-55833)

    * jackson-databind: Jackson-databind: Security bypass allows arbitrary code execution [eap-8.1.z]     (CVE-2026-54513)

    * jackson-databind: jackson-databind: Arbitrary code execution via PolymorphicTypeValidator bypass     [eap-8.1.z] (CVE-2026-54512)

    * undertow-core: Undertow:HTTP request smuggling via oversized chunk-size bit overlap [eap-8.1.z]     (CVE-2026-14180)

    * artemis-server: artemis-server: Pre-auth topology disclosure via CORE SUBSCRIBE_TOPOLOGY_V2 on channel0     [eap-8.1.z] (CVE-2026-49363)

    * undertow-websockets-jsr: Undertow: Pre-Auth DoS on websocket endpoint with @ServerEndpoint class with     any @OnMessage method [eap-8.1.z] (CVE-2026-15565)

    * wildfly-iiop-openjdk: Wildfly: Pre-auth denial of service on the IIOP listener [eap-8.1.z]     (CVE-2026-15567)

    * cxf-rt-transports-jms: Apache CXF: Arbitrary code execution via untrusted JMS configuration [eap-8.1.z]     (CVE-2026-50632)

    * cxf-core: Apache CXF: Information disclosure via out-of-band external entity resolution due to missing     JAXP hardening [eap-8.1.z] (CVE-2026-49875)

    * wildfly-elytron-asn1: Unbounded Memory Allocation in WildFly Elytron ASN.1 DERDecoder via Crafted DER     Payload [eap-8.1.z] (CVE-2026-10832)

    * cxf-rt-transports-jms: Apache CXF: Remote Code Execution via untrusted JMS configuration [eap-8.1.z]     (CVE-2026-44417)

    * wildfly-elytron-realm-token: parameter injection in EAP's elytron oauth2 [eap-8.1.z] (CVE-2026-85511)

    * jakarta.faces: mojarra: Unauthenticated RCE in EAP JSF applications via EL injection in ui:include     [eap-8.1.z] (CVE-2026-46581)

    * wildfly-iiop-openjdk: Missing authentication on EAP's IIOP NameService leads to MITM or DoS [eap-8.1.z]     (CVE-2026-15563)

    * jboss-remoting: jboss-remoting: integer overflow in MessageReader leads to pre-authentication denial of     service [eap-8.1.z] (CVE-2026-15562)

    * undertow-core: OOM via missing limits in chunked trailer in EAP's Undertow [eap-8.1.z] (CVE-2026-15561)

    * openjdk-orb: unauthed class loading via IIOP in EAP [eap-8.1.z] (CVE-2026-15560)

    * artemis-server: Apache Artemis  session hijack via missing authentication [eap-8.1.z]     (CVE-2026-57967)

    * wildfly-clustering-infinispan-marshalling: Jboss Deserialization RCE via Unfiltered River Unmarshaller     [eap-8.1.z] (CVE-2026-15555)

    * undertow-core: Undertow: Authentication Bypass via AJP ssl_cert/is_ssl Forgery [eap-8.1.z]     (CVE-2026-15554)

    * jgroups: artemis cluster password leak via jgroups spoof [eap-8.1.z] (CVE-2026-49364)

    * artemis-server: artemis core protocol permits unauthed queue creation [eap-8.1.z] (CVE-2026-49362)

    * artemis-server: artemis messaging handlers in Red Hat EAP permit deserialization by default [eap-8.1.z]     (CVE-2026-86404)

    * undertow-core: Undertow: Denial of Service via WebSocket permessage-deflate processing [eap-8.1.z]     (CVE-2026-5680)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and     4.2.16.Final, io.netty.handler.codec.dns.AbstractDnsRecord,     io.netty.handler.codec.dns.DefaultDnsRecordDecoder.decodeRecord(), and     io.netty.handler.codec.dns.DnsCodecUtil.decompressDomainName() failed to release retained or newly     allocated ByteBuf objects when IDN.toASCII() or encodeDomainName() rejected a malformed domain name,     allowing unauthenticated remote DNS packets to leak direct memory incrementally until denial of service.
    This issue is fixed in versions 4.1.136.Final and 4.2.16.Final. (CVE-2026-73508)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
465178	Echo: io.netty:netty-codec-dns: security update to 4.1.136.Final	Tenable Cloud Security	Echo Local Security Checks	Local	high
465178	Echo: io.netty:netty-codec-dns: security update to 4.1.136.Final	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
348800	RHEL 8 : Red Hat JBoss Enterprise Application Platform 8.1.8 (RHSA-2026:70228)	Nessus	Red Hat Local Security Checks	Local	high
348794	RHEL 10 : Red Hat JBoss Enterprise Application Platform 8.1.8 (RHSA-2026:70230)	Nessus	Red Hat Local Security Checks	Local	high
348793	RHEL 9 : Red Hat JBoss Enterprise Application Platform 8.1.8 (RHSA-2026:70229)	Nessus	Red Hat Local Security Checks	Local	high
335366	Linux Distros Unpatched Vulnerability : CVE-2026-73508	Nessus	Misc.	Local	high
445266	SCA: security update for io.netty:netty-codec-dns (GHSA-mfg7-5gfp-c4w3)	Tenable Cloud Security	SCA Checks	Local	high
445266	SCA: security update for io.netty:netty-codec-dns (GHSA-mfg7-5gfp-c4w3)	Tenable Self-Hosted Container Security	SCA Checks	Local	high

Detections

Analytics

CVE-2026-73508

high

Tenable Plugins

high

high

high

high

high

high

high

high