Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer size and prevent decompression bomb attacks. This limit is correctly enforced for gzip and deflate encodings via ZlibDecoder, but is silently ignored when the content encoding is br (Brotli), zstd, or snappy. An attacker can bypass the configured decompression limit by sending a compressed payload with Content-Encoding: br instead of Content-Encoding: gzip, causing unbounded memory allocation and out-of-memory denial of service. The same vulnerability exists in DelegatingDecompressorFrameListener for HTTP/2 connections. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:53644 advisory.

    Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly     application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.4.25 serves as a     replacement for Red Hat JBoss Enterprise Application Platform 7.4.24, and includes bug fixes and     enhancements. See the Red Hat JBoss Enterprise Application Platform 7.4.25 Release Notes for information     about the most significant bug fixes and enhancements included in this release.

    Security Fix(es):

    * netty-codec-redis: Netty: Denial of Service via malicious Redis array header (CVE-2026-50011)

    * netty-handler: Netty: Denial of Service due to eager buffer allocation in TLS handshake (CVE-2026-45416)

    * netty-codec-redis: netty-codec-redis: Denial of Service via crafted Redis payload with deeply nested     arrays (CVE-2026-44250)

    * netty-codec-redis: netty-codec-redis: Denial of Service via crafted Redis payloads (CVE-2026-44890)

    * netty-transport-sctp: Netty-transport-sctp: Denial of Service due to unbounded memory growth from     SctpMessage fragments (CVE-2026-46340)

    * netty-resolver-dns: Netty: Information disclosure and data manipulation due to improper CNAME record     validation (CVE-2026-45674)

    * netty-handler: Netty: Improper trust manager handling leads to hostname verification bypass     (CVE-2026-50010)

    * netty-codec-redis: Netty's Lack of Lifecycle Cleanup Leads to Pooled ByteBuf Leak in     RedisArrayAggregator (CVE-2026-48006)

    * netty-resolver-dns: Netty has Insufficient Bailiwick Validation for NS Records (CVE-2026-47691)

    * netty-codec-haproxy: Netty HAProxy PROXY protocol v2 codec: Denial of Service via memory leak from     crafted PROXY protocol headers (CVE-2026-48059)

    * netty-codec-http2: netty-codec-http2: Denial of Service due to resource leak (CVE-2026-48043)

    * netty-codec-haproxy: Netty-codec-haproxy: Denial of Service via malformed HAProxy message     (CVE-2026-44893)

    * netty-codec-http: Netty: Request smuggling via malformed Transfer-Encoding parsing (CVE-2026-42585)

    * netty-codec-http2: Netty: Denial of Service via unbounded memory allocation in HTTP content     decompression (CVE-2026-42587)

    * netty-codec-http: Netty: Denial of Service via unbounded memory allocation in HTTP content decompression     (CVE-2026-42587)

    * netty-codec-http: Netty: HTTP request smuggling via URI manipulation and CRLF injection (CVE-2026-41417)

    * netty-handler-proxy: Netty: HTTP Header Injection via HttpProxyHandler Disabled Validation     (CVE-2026-42578)

    * netty-codec-http: Netty: HTTP Request Smuggling due to improper handling of conflicting HTTP/1.0 headers     (CVE-2026-42581)

    * netty-codec-http: Netty: Incorrect HTTP response parsing leads to data confusion (CVE-2026-42584)

    * netty-codec-dns: Netty: High integrity impact due to improper DNS domain name constraint enforcement     (CVE-2026-42579)

    * picketlink-federation: auth bypass in Picketlink SAML unsolicited-response (CVE-2026-10579)

    * bcprov-jdk18on: LDAP injection vulnerability in LDAPStoreHelper.java (CVE-2026-0636)

    * bcprov-jdk15on: LDAP injection vulnerability in LDAPStoreHelper.java (CVE-2026-0636)

    * bcprov-jdk15: LDAP injection vulnerability in LDAPStoreHelper.java (CVE-2026-0636)

    * bcprov-jdk12: LDAP injection vulnerability in LDAPStoreHelper.java (CVE-2026-0636)

    * bcpg-jdk18on: unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion (CVE-2026-3505)

    * bcpg-jdk15on: unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion (CVE-2026-3505)

    * bcpkix-jdk18on: PKIX draft CompositeVerifier accepts empty signature sequence as valid (CVE-2026-5588)

    * bcpkix-jdk15on: PKIX draft CompositeVerifier accepts empty signature sequence as valid (CVE-2026-5588)

    * bcprov-jdk18on: GOSTCTR implementation unable to process more than 255 blocks correctly (CVE-2025-14813)

    * bcprov-jdk15on: GOSTCTR implementation unable to process more than 255 blocks correctly (CVE-2025-14813)

    * bcprov-jdk15: GOSTCTR implementation unable to process more than 255 blocks correctly (CVE-2025-14813)

    * bcprov-jdk12: GOSTCTR implementation unable to process more than 255 blocks correctly (CVE-2025-14813)

    * bcprov-jdk15: private key leakage via non-constant time comparisons (CVE-2026-5598)

    * bcprov-jdk12: private key leakage via non-constant time comparisons (CVE-2026-5598)

    * artemis-server: Apache Artemis, Apache ActiveMQ Artemis: Message injection and exfiltration due to     missing authentication (CVE-2026-27446)

    * undertow-core: Undertow: Authentication Bypass via AJP ssl_cert/is_ssl Forgery (CVE-2026-15554)

    * wildfly-clustering-infinispan-marshalling: Jboss Deserialization RCE via Unfiltered River Unmarshaller     (CVE-2026-15555)

    * picketlink-federation: picketlink SAML 2.0 auth bypass via missing assertions (CVE-2026-15556)

    * openjdk-orb: unauthed class loading via IIOP in EAP (CVE-2026-15560)

    * undertow-core: OOM via missing limits in chunked trailer in EAP's Undertow (CVE-2026-15561)

    * jboss-remoting: jboss-remoting: integer overflow in MessageReader leads to pre-authentication denial of     service (CVE-2026-15562)

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

    * jsf-impl: mojarra: Unauthenticated RCE in EAP JSF applications via EL injection in ui:include     (CVE-2026-46581)

    * netty-handler: netty-handler: IPv6 subnet rule bypass due to incorrect masking operation     (CVE-2026-44249)

    * jackson-core: Denial of Service via incomplete fix in async JSON parser (CVE-2026-68494)

    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 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0 versions of Coherence installed on the remote host are affected by multiple vulnerabilities as referenced in the July 2026 CPU advisory.

  - Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported     versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable     vulnerability allows unauthenticated attacker with network access via TCP to compromise Oracle Coherence.
    While the vulnerability is in Oracle Coherence, attacks may significantly impact additional products     (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Coherence.
    (CVE-2026-60217)

  - Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported     versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable     vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Coherence.
    Successful attacks of this vulnerability can result in takeover of Oracle Coherence. (CVE-2026-60225)

  - Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Centralized Third     Party Jars (Apache Log4j)). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0     and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via     HTTP to compromise Oracle Coherence. Successful attacks of this vulnerability can result in unauthorized     creation, deletion or modification access to critical data or all Oracle Coherence accessible data.
    (CVE-2026-34481)

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2308-1 advisory.

    This update for netty, netty-tcnative fixes the following issues

    - CVE-2026-41417: missing validations leads to HTTP request smuggling and RTSP request injection via     start-line       injection in `DefaultHttpRequest.setUri()` (bsc#1264350).
    - CVE-2026-42578: HTTP Header Injection via HttpProxyHandler Disabled Validation in Netty (bsc#1265243).
    - CVE-2026-42579: DNS codec does not enforce RFC 1035 domain name constraints during either encoding or     decoding       (bsc#1265272).
    - CVE-2026-42580: chunk size parser silently overflows int and enables request smuggling attacks     (bsc#1265273).
    - CVE-2026-42581: TE+CL header coexistence in HTTP/1.0 requests bypasses smuggling sanitization     (bsc#1265277).
    - CVE-2026-42583: resource exhaustion and possible denial of service via `Lz4FrameDecoder` (bsc#1265279).
    - CVE-2026-42584: improper handling of inbound responses in `HttpClientCodec` can lead to response     desynchronization       (bsc#1265280).
    - CVE-2026-42585: Netty is an asynchronous, event-driven network application framework (bsc#1265292).
    - CVE-2026-42586: CRLF Injection in Netty Redis Codec Encoder (bsc#1265245).
    - CVE-2026-42587: HttpContentDecompressor maxAllocation bypass via Content-Encoding: br/zstd/snappy     enables       decompression bomb DoS (bsc#1265246).
    - CVE-2026-44248: Netty is an asynchronous, event-driven network application framework (bsc#1265294).
    - CVE-2026-42582: HTTP/3 QPACK literal unbounded allocation (bsc#1265318).

    Changes for netty:

    - Upgrade to upstream version 4.1.133

Tenable has extracted the preceding description block directly from the SUSE 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 4.2.13.Final and     4.1.133.Final, HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer     size and prevent decompression bomb attacks. This limit is correctly enforced for gzip and deflate     encodings via ZlibDecoder, but is silently ignored when the content encoding is br (Brotli), zstd, or     snappy. An attacker can bypass the configured decompression limit by sending a compressed payload with     Content-Encoding: br instead of Content-Encoding: gzip, causing unbounded memory allocation and out-of-     memory denial of service. The same vulnerability exists in DelegatingDecompressorFrameListener for HTTP/2     connections. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final. (CVE-2026-42587)

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

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 4.2.13.Final and
    4.1.133.Final, HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer
    size and prevent decompression bomb attacks. This limit is correctly enforced for gzip and deflate
    encodings via ZlibDecoder, but is silently ignored when the content encoding is br (Brotli), zstd, or
    snappy. An attacker can bypass the configured decompression limit by sending a compressed payload with
    Content-Encoding: br instead of Content-Encoding: gzip, causing unbounded memory allocation and out-of-
    memory denial of service. The same vulnerability exists in DelegatingDecompressorFrameListener for HTTP/2
    connections. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final. (CVE-2026-42587)

ID	Name	Product	Family	Type	Severity
334631	RHEL 7 : Red Hat JBoss Enterprise Application Platform 7.4.25 security pdate (Important) (RHSA-2026:53644)	Nessus	Red Hat Local Security Checks	Local	critical
328968	Oracle Coherence (July 2026 CPU)	Nessus	Misc.	Local	medium
321020	SUSE SLED15 / SLES15 Security Update : netty, netty-tcnative (SUSE-SU-2026:2308-1)	Nessus	SuSE Local Security Checks	Local	medium
314775	Linux Distros Unpatched Vulnerability : CVE-2026-42587	Nessus	Misc.	Local	high
441469	SCA: security update for io.netty:netty-codec-http, io.netty:netty-codec-http2 (GHSA-f6hv-jmp6-3vwv)	Tenable Cloud Security	SCA Checks	Local	high
441469	SCA: security update for io.netty:netty-codec-http, io.netty:netty-codec-http2 (GHSA-f6hv-jmp6-3vwv)	Tenable Self-Hosted Container Security	SCA Checks	Local	high

Detections

Analytics

CVE-2026-42587

high

Tenable Plugins

critical

medium

medium

high

high

high