{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "Copyright © Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93561.json" } ], "title": "io.netty/netty-codec-memcache: Netty: Memcache binary codec signed/unsigned type mismatch causes frame desynchronization and response smuggling", "tracking": { "current_release_date": "2026-09-18T23:15:04+00:00", "generator": { "date": "2026-09-18T23:15:04+00:00", "engine": { "name": "Red Hat SDEngine", "version": "5.3.21" } }, "id": "CVE-2026-93561", "initial_release_date": "2026-09-10T00:44:07+00:00", "revision_history": [ { "date": "2026-09-10T00:44:07+00:00", "number": "1", "summary": "Initial version" }, { "date": "2026-09-18T20:01:46+00:00", "number": "2", "summary": "Current version" }, { "date": "2026-09-18T23:15:04+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat build of Apache Camel for Spring Boot 4", "product": { "name": "Red Hat build of Apache Camel for Spring Boot 4", "product_id": "red_hat_build_of_apache_camel_for_spring_boot_4", "product_identification_helper": { "cpe": "cpe:/a:redhat:camel_spring_boot:4" } } } ], "category": "product_family", "name": "Red Hat build of Apache Camel for Spring Boot 4" }, { "branches": [ { "category": "product_name", "name": "Red Hat Fuse 7", "product": { "name": "Red Hat Fuse 7", "product_id": "red_hat_fuse_7", "product_identification_helper": { "cpe": "cpe:/a:redhat:jboss_fuse:7" } } } ], "category": "product_family", "name": "Red Hat Fuse 7" }, { "branches": [ { "category": "product_name", "name": "Red Hat JBoss Enterprise Application Platform 7", "product": { "name": "Red Hat JBoss Enterprise Application Platform 7", "product_id": "red_hat_jboss_enterprise_application_platform_7", "product_identification_helper": { "cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7" } } } ], "category": "product_family", "name": "Red Hat JBoss Enterprise Application Platform 7" }, { "branches": [ { "category": "product_name", "name": "Red Hat Single Sign-On 7", "product": { "name": "Red Hat Single Sign-On 7", "product_id": "red_hat_single_sign-on_7", "product_identification_helper": { "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7" } } } ], "category": "product_family", "name": "Red Hat Single Sign-On 7" }, { "category": "product_version", "name": "netty-codec-memcache", "product": { "name": "netty-codec-memcache", "product_id": "netty-codec-memcache", "product_identification_helper": { "purl": "pkg:maven/io.netty/netty-codec-memcache@4.1.136.Final-redhat-00001" } } }, { "category": "product_version", "name": "jboss-eap-7/eap74-els-openjdk11-openshift-rhel8", "product": { "name": "jboss-eap-7/eap74-els-openjdk11-openshift-rhel8", "product_id": "jboss-eap-7/eap74-els-openjdk11-openshift-rhel8", "product_identification_helper": { "purl": "pkg:oci/eap74-els-openjdk11-openshift-rhel8@sha256:baabfce45661246f821b3373ce069ca1eccead65dc96e849f5fb99bade9dca72?repository_url=registry.redhat.io/jboss-eap-7/eap74-els-openjdk11-openshift-rhel8" } } }, { "category": "product_version", "name": "jboss-eap-7/eap74-els-openjdk17-openshift-rhel8", "product": { "name": "jboss-eap-7/eap74-els-openjdk17-openshift-rhel8", "product_id": "jboss-eap-7/eap74-els-openjdk17-openshift-rhel8", "product_identification_helper": { "purl": "pkg:oci/eap74-els-openjdk17-openshift-rhel8@sha256:a601242607810bd76ca48689784e13e8871118e422ac41b9b2d0ccb2d673501d?repository_url=registry.redhat.io/jboss-eap-7/eap74-els-openjdk17-openshift-rhel8" } } }, { "category": "product_version", "name": "jboss-eap-7/eap74-els-openjdk8-openshift-rhel8", "product": { "name": "jboss-eap-7/eap74-els-openjdk8-openshift-rhel8", "product_id": "jboss-eap-7/eap74-els-openjdk8-openshift-rhel8", "product_identification_helper": { "purl": "pkg:oci/eap74-els-openjdk8-openshift-rhel8@sha256:0f44b615c5e1831d78081e0abbc43fca74b15cd45b16a9a7eacfb1c97f8ffdf9?repository_url=registry.redhat.io/jboss-eap-7/eap74-els-openjdk8-openshift-rhel8" } } } ], "category": "vendor", "name": "Red Hat" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "netty-codec-memcache as a component of Red Hat build of Apache Camel for Spring Boot 4", "product_id": "red_hat_build_of_apache_camel_for_spring_boot_4:netty-codec-memcache" }, "product_reference": "netty-codec-memcache", "relates_to_product_reference": "red_hat_build_of_apache_camel_for_spring_boot_4" }, { "category": "default_component_of", "full_product_name": { "name": "netty-codec-memcache as a component of Red Hat Fuse 7", "product_id": "red_hat_fuse_7:netty-codec-memcache" }, "product_reference": "netty-codec-memcache", "relates_to_product_reference": "red_hat_fuse_7" }, { "category": "default_component_of", "full_product_name": { "name": "jboss-eap-7/eap74-els-openjdk11-openshift-rhel8 as a component of Red Hat JBoss Enterprise Application Platform 7", "product_id": "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk11-openshift-rhel8" }, "product_reference": "jboss-eap-7/eap74-els-openjdk11-openshift-rhel8", "relates_to_product_reference": "red_hat_jboss_enterprise_application_platform_7" }, { "category": "default_component_of", "full_product_name": { "name": "jboss-eap-7/eap74-els-openjdk17-openshift-rhel8 as a component of Red Hat JBoss Enterprise Application Platform 7", "product_id": "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk17-openshift-rhel8" }, "product_reference": "jboss-eap-7/eap74-els-openjdk17-openshift-rhel8", "relates_to_product_reference": "red_hat_jboss_enterprise_application_platform_7" }, { "category": "default_component_of", "full_product_name": { "name": "jboss-eap-7/eap74-els-openjdk8-openshift-rhel8 as a component of Red Hat JBoss Enterprise Application Platform 7", "product_id": "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk8-openshift-rhel8" }, "product_reference": "jboss-eap-7/eap74-els-openjdk8-openshift-rhel8", "relates_to_product_reference": "red_hat_jboss_enterprise_application_platform_7" }, { "category": "default_component_of", "full_product_name": { "name": "netty-codec-memcache as a component of Red Hat JBoss Enterprise Application Platform 7", "product_id": "red_hat_jboss_enterprise_application_platform_7:netty-codec-memcache" }, "product_reference": "netty-codec-memcache", "relates_to_product_reference": "red_hat_jboss_enterprise_application_platform_7" }, { "category": "default_component_of", "full_product_name": { "name": "netty-codec-memcache as a component of Red Hat Single Sign-On 7", "product_id": "red_hat_single_sign-on_7:netty-codec-memcache" }, "product_reference": "netty-codec-memcache", "relates_to_product_reference": "red_hat_single_sign-on_7" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-93561", "cwe": { "id": "CWE-1035", "name": "CWE-1035" }, "discovery_date": "2026-09-10T00:44:07+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2536949" } ], "notes": [ { "category": "description", "text": "A flaw was found in io.netty/netty-codec-memcache. The Memcache binary protocol codec incorrectly reads `keyLength` and `extrasLength` as signed Java types instead of unsigned, as specified by the protocol. A malicious Memcache server can exploit this type mismatch by sending a specially crafted response. This can lead to frame desynchronization and response smuggling, where one client's data may be inadvertently exposed to another client's response stream in proxy or cache environments.", "title": "Vulnerability description" }, { "category": "summary", "text": "io.netty/netty-codec-memcache: Netty: Memcache binary codec signed/unsigned type mismatch causes frame desynchronization and response smuggling", "title": "Vulnerability summary" }, { "category": "other", "text": "This is an Important flaw due to the potential for response smuggling in proxy/cache deployments utilizing the Netty Memcache binary codec. Red Hat products that incorporate the `netty-codec-memcache` component and operate as a Memcache proxy or cache are susceptible. This could lead to one client's data being exposed to another, impacting data confidentiality and integrity in shared environments.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "known_affected": [ "red_hat_build_of_apache_camel_for_spring_boot_4:netty-codec-memcache", "red_hat_fuse_7:netty-codec-memcache", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk11-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk17-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk8-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:netty-codec-memcache", "red_hat_single_sign-on_7:netty-codec-memcache" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-93561" }, { "category": "external", "summary": "RHBZ#2536949", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536949" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-93561", "url": "https://www.cve.org/CVERecord?id=CVE-2026-93561" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-93561", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93561" } ], "release_date": "2026-09-10T00:44:07+00:00", "remediations": [ { "category": "workaround", "details": "See https://github.com/netty/netty/security/advisories/GHSA-wxrh-4rgq-pjcg for fixed versions and remediation guidance.", "product_ids": [ "red_hat_build_of_apache_camel_for_spring_boot_4:netty-codec-memcache", "red_hat_fuse_7:netty-codec-memcache", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk11-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk17-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk8-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:netty-codec-memcache", "red_hat_single_sign-on_7:netty-codec-memcache" ] }, { "category": "no_fix_planned", "details": "Will not fix", "product_ids": [ "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk11-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk17-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk8-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:netty-codec-memcache" ] }, { "category": "none_available", "details": "Affected", "product_ids": [ "red_hat_build_of_apache_camel_for_spring_boot_4:netty-codec-memcache", "red_hat_fuse_7:netty-codec-memcache", "red_hat_single_sign-on_7:netty-codec-memcache" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1" }, "products": [ "red_hat_build_of_apache_camel_for_spring_boot_4:netty-codec-memcache", "red_hat_fuse_7:netty-codec-memcache", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk11-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk17-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk8-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:netty-codec-memcache", "red_hat_single_sign-on_7:netty-codec-memcache" ] } ], "threats": [ { "category": "impact", "details": "Important", "product_ids": [ "red_hat_build_of_apache_camel_for_spring_boot_4:netty-codec-memcache", "red_hat_fuse_7:netty-codec-memcache", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk11-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk17-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:jboss-eap-7/eap74-els-openjdk8-openshift-rhel8", "red_hat_jboss_enterprise_application_platform_7:netty-codec-memcache", "red_hat_single_sign-on_7:netty-codec-memcache" ] } ], "title": "io.netty/netty-codec-memcache: Netty: Memcache binary codec signed/unsigned type mismatch causes frame desynchronization and response smuggling" } ] }