RHSA-2026:95221: Important: Red Hat JBoss Enterprise Application Platform 8.1.9 XP 6.0.7.GA release
Important: Red Hat JBoss Enterprise Application Platform 8.1.9 XP 6.0.7.GA release
Other sources
This is a cumulative patch release zip for the JBoss EAP XP 6.0.7 runtime distribution for use with EAP 8.1.9Security Fix(es): netty-codec-http2: Netty: HTTP/2 header field values are not validated by default (CR/LF/NUL passthrough) [eapxp-6] (CVE-2026-93579) netty-codec-http2: HTTP/1 absolute-form Host mismatch is translated to HTTP/2 :authority, overriding the request-target authority [eapxp-6] (CVE-2026-93569) netty-codec-http2: Netty: HTTP/2 and HTTP/3 Extended CONNECT requests are downgraded as regular CONNECT requests [eapxp-6] (CVE-2026-93568) netty-codec-http2: HTTP/1 authority-form CONNECT is translated to malformed HTTP/2 CONNECT with Host-controlled :authority [eapxp-6] (CVE-2026-93567) netty-codec-http2: Netty: HTTP/2 HpackEncoder DoS with large table size [eapxp-6] (CVE-2026-93492) netty-codec-http2: Netty: Information disclosure via CORS Vary header overwrite [eapxp-6] (CVE-2026-59903) netty-buffer: Netty: Information disclosure via CORS Vary header overwrite [eapxp-6] (CVE-2026-59903) parent: Apache ZooKeeper: Operational log forgery via newline injection [eapxp-6] (CVE-2026-84501) zookeeper: Apache ZooKeeper: Operational log forgery via newline injection [eapxp-6] (CVE-2026-84501) parent: Apache ZooKeeper: Improper certificate validation in FIPS mode allows quorum compromise [eapxp-6] (CVE-2026-59969) zookeeper: Apache ZooKeeper: Improper certificate validation in FIPS mode allows quorum compromise [eapxp-6] (CVE-2026-59969) resteasy-core: RESTEasy: CorsFilter Reflects Arbitrary Origin with Credentials under Wildcard Config [eapxp-6] (CVE-2026-89058) resteasy-core: RESTEasy: IIOImageProvider Unbounded Image Decode (Decompression-Bomb DoS) [eapxp-6] (CVE-2026-89059) zstd-jni: luben zstd-jni: Remote use-after-free vulnerability in dictionary sharing [eapxp-6] (CVE-2026-90852) zstd-jni: zstd-jni: Denial of Service via out-of-bounds read in ZstdDictDecompress [eapxp-6] (CVE-2026-90560) jackson-databind: jackson-databind: CPU Denial of Service via unbounded numeric parsing [eapxp-6] (CVE-2026-68497) zstd-jni: zstd-jni: Information disclosure or denial of service via out-of-bounds read [eapxp-6] (CVE-2026-89046) zstd-jni: zstd-jni: Denial of Service (DoS) via out-of-bounds read in Zstd.trainFromBufferDirect [eapxp-6] (CVE-2026-87824) zstd-jni: zstd-jni: Out-of-bounds read in ZstdDictCompress constructor leads to denial of service [eapxp-6] (CVE-2026-87795) zstd-jni: zstd-jni: Use-After-Free vulnerability allows memory corruption and denial of service [eapxp-6] (CVE-2026-87877) zstd-jni: zstd-jni: Data corruption or denial of service via use-after-free vulnerability [eapxp-6] (CVE-2026-87825) micrometer-core: Micrometer: Line-protocol and log injection via unsanitized input allows metric and log spoofing [eapxp-6] (CVE-2026-59296) proton-j: Apache Qpid Proton-J: Denial of Service via unbounded symbol value caching [eapxp-6] (CVE-2026-66257) proton-j: Apache Qpid Proton-J: Denial of Service due to excessive allocation [eapxp-6] (CVE-2026-66273) resteasy-core: RESTeasy SourceProvider remote unauthenticated file read [eapxp-6] (CVE-2026-17615) proton-j: Apache Qpid Proton-J: Denial of Service via unbounded type nesting [eapxp-6] (CVE-2026-66274)
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Red Hat JBoss Enterprise Application Platform XP 6.0.7.GA for EAP 8.1.9to a version that resolves this vulnerability.Fixed in 6.0.7.GA - Operational
Back up the existing installation, including all applications, configuration files, databases, and database settings.
- Operational
Before applying the update, ensure that all previously released errata relevant to the system have been applied.
Event History
Frequently Asked Questions
Which runtime deployment is this patch intended for?
It is a cumulative patch-release ZIP for the JBoss EAP XP 6.0.7 runtime distribution used with EAP 8.1.9.
Are the listed fixes limited to a single Netty issue?
No. The advisory lists multiple Netty HTTP/2 issues, including header validation, authority handling, Extended CONNECT handling, HPACK-related denial of service, and CORS Vary header information disclosure. It also lists an Apache ZooKeeper operational log forgery issue caused by newline injection.