Red Hat Product Errata RHSA-2026:50085 - Security Advisory
Issued:
2026-08-04
Updated:
2026-08-04

RHSA-2026:50085 - Security Advisory

Synopsis

Important: Red Hat JBoss Enterprise Application Platform 8.1.7.1 XP 6.0.5.1 release

Type/Severity

Security Advisory: Important

Topic

JBoss EAP XP 6.0.5.1 release on the EAP 8.1 base. See references for release notes.

Description

A security update is now available for Red Hat JBoss Enterprise Application Platform 8.1.7.1, XP 6.0.5.1. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Security Fix(es):

  • memory exhaustion in io.netty:netty-codec-haproxy (CVE-2026-48059)
  • DNS cache poisoning in io.netty:netty-resolver-dns (CVE-2026-47691)
  • DDoS in io.netty:netty-codec-http2 (CVE-2026-50560)
  • memory exhaustion in io.netty:netty-codec-redis (CVE-2026-50011)
  • memory exhaustion in io.netty:netty-codec-redis (CVE-2026-44250)
  • memory exhaustion in io.netty:netty-codec-redis (CVE-2026-44890)
  • IPv6 subnet filter bypass in io.netty:netty-handler (CVE-2026-44249)
  • request smuggling in io.netty:netty-codec-http (CVE-2026-50020)
  • memory leak in io.netty:netty-codec-haproxy (CVE-2026-44893)
  • TLS hostname verification accidentally disabled in io.netty:netty-handler (CVE-2026-50010)
  • DNS cache poisoning in io.netty:netty-resolver-dns (CVE-2026-45673)
  • excessive memory usage from SNIHandler in io.netty:netty-handler (CVE-2026-45416)
  • file descriptor leak in io.netty:netty-transport-native-epoll and io.netty:netty-transport-native-kqueue (CVE-2026-45536)
  • DNS cache poisoning in io.netty:netty-resolver-dns (CVE-2026-45674)
  • memory exhaustion in io.netty:netty-transport-sctp (CVE-2026-46340)
  • denial of service in io.netty:netty-codec-http2 (CVE-2026-47244)
  • memory exhaustion in io.netty:netty-codec-redis (CVE-2026-48006)
  • memory exhaustion in io.netty:netty-codec-http2 (CVE-2026-48043)
  • netty-codec-http2: Netty: Denial of Service via unbounded memory allocation in HTTP content decompression (CVE-2026-42587)

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.

Solution

Before applying the update, make sure all previously released errata relevant to your system have been applied. Also, back up your existing installation, including all applications, configuration files, databases and database settings. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

Affected Products

  • JBoss Enterprise Application Platform Text-Only Advisories x86_64

Fixes

  • BZ - 2477220 - CVE-2026-42587 netty: io.netty/netty-codec-http: io.netty/netty-codec-http2: Netty: Denial of Service via unbounded memory allocation in HTTP content decompression
  • BZ - 2488053 - CVE-2026-44890 netty-codec-redis: netty-codec-redis: Denial of Service via crafted Redis payloads
  • BZ - 2488062 - CVE-2026-44250 netty-codec-redis: netty-codec-redis: Denial of Service via crafted Redis payload with deeply nested arrays
  • BZ - 2488081 - CVE-2026-44249 netty-handler: netty-handler: IPv6 subnet rule bypass due to incorrect masking operation
  • BZ - 2488383 - CVE-2026-44893 netty-codec-haproxy: Netty-codec-haproxy: Denial of Service via malformed HAProxy message
  • BZ - 2488386 - CVE-2026-45673 netty-resolver-dns: Netty DNS resolver: DNS Cache Poisoning via predictable transaction IDs
  • BZ - 2488388 - CVE-2026-46340 netty-transport-sctp: Netty-transport-sctp: Denial of Service due to unbounded memory growth from SctpMessage fragments
  • BZ - 2488391 - CVE-2026-45416 netty-handler: Netty: Denial of Service due to eager buffer allocation in TLS handshake
  • BZ - 2488394 - CVE-2026-45536 netty-transport-native-epoll: netty-transport-native-kqueue: Netty: Denial of Service due to file descriptor leak in SCM_RIGHTS message handling
  • BZ - 2488399 - CVE-2026-47244 netty-codec-http2: Netty: Denial of Service via uncontrolled HTTP/2 concurrent streams
  • BZ - 2488400 - CVE-2026-45674 netty-resolver-dns: Netty: Information disclosure and data manipulation due to improper CNAME record validation
  • BZ - 2488407 - CVE-2026-50560 netty-codec-http2: Netty: Denial of Service due to HTTP/2 max header size handling
  • BZ - 2488413 - CVE-2026-50011 netty-codec-redis: Netty: Denial of Service via malicious Redis array header
  • BZ - 2488421 - CVE-2026-50020 netty-codec-http: Netty: Data manipulation via request-boundary confusion in HttpObjectDecoder
  • BZ - 2488429 - CVE-2026-50010 netty-handler: Netty: Improper trust manager handling leads to hostname verification bypass
  • BZ - 2488433 - CVE-2026-48006 netty-codec-redis: Netty's Lack of Lifecycle Cleanup Leads to Pooled ByteBuf Leak in RedisArrayAggregator
  • BZ - 2488437 - CVE-2026-48059 netty-codec-haproxy: Netty HAProxy PROXY protocol v2 codec: Denial of Service via memory leak from crafted PROXY protocol headers
  • BZ - 2488439 - CVE-2026-47691 io.netty/netty-resolver-dns: Netty has Insufficient Bailiwick Validation for NS Records
  • BZ - 2488442 - CVE-2026-48043 netty-codec-http2: netty-codec-http2: Denial of Service due to resource leak
  • JBEAP-33612 - (xp-6.0.z) Upgrade netty from 4.1.133.Final-redhat-00001 to 4.1.135.Final-redhat-00001

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.