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{"bugzilla": {"description": "com.github.luben/zstd-jni: zstd-jni: Denial of Service (DoS) via out-of-bounds read in Zstd.trainFromBufferDirect", "id": "2530998", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2530998"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["A flaw was found in zstd-jni. Attackers can exploit this by supplying oversized per-sample lengths to the `Zstd.trainFromBufferDirect` function, which fails to validate the samples buffer capacity. This allows for reading past buffer boundaries, leading to out-of-bounds memory access and ultimately causing the Java Virtual Machine (JVM) to terminate, resulting in a Denial of Service (DoS)."], "mitigation": {"lang": "en:us", "value": "No complete workaround is currently available. As a temporary measure, applications using Zstd.trainFromBufferDirect() should validate that all sample lengths are non-negative and that their total does not exceed the capacity of the samples buffer before calling the function. Avoid passing attacker-controlled sample length arrays to this function until an update is available. Upgrade to a Red Hat product release containing zstd-jni 1.5.7-14 or later when available."}, "name": "CVE-2026-87824", "package_state": [{"cpe": "cpe:/a:redhat:exploit_intelligence:0", "fix_state": "Affected", "package_name": "exploit-intelligence/agent-client-rhel9", "product_name": "Exploit Intelligence"}, {"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Affected", "package_name": "jenkins-2-plugins", "product_name": "OpenShift Developer Tools and Services"}, {"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Affected", "package_name": "ocp-tools-4/jenkins-rhel8", "product_name": "OpenShift Developer Tools and Services"}, {"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Affected", "package_name": "ocp-tools-4/jenkins-rhel9", "product_name": "OpenShift Developer Tools and Services"}, {"cpe": "cpe:/a:redhat:camel_quarkus:3", "fix_state": "Affected", "package_name": "zstd-jni", "product_name": "Red Hat build of Apache Camel 4 for Quarkus 3"}, {"cpe": "cpe:/a:redhat:camel_spring_boot:4", "fix_state": "Affected", "package_name": "zstd-jni", "product_name": "Red Hat build of Apache Camel for Spring Boot 4"}, {"cpe": "cpe:/a:redhat:apicurio_registry:3", "fix_state": "Affected", "package_name": "zstd-jni", "product_name": "Red Hat build of Apicurio Registry 3"}, {"cpe": "cpe:/a:redhat:debezium:3", "fix_state": "Affected", "package_name": "zstd-jni", "product_name": "Red Hat build of Debezium 3"}, {"cpe": "cpe:/a:redhat:quarkus:3", "fix_state": "Affected", "package_name": "zstd-jni", "product_name": "Red Hat build of Quarkus"}, {"cpe": "cpe:/a:redhat:ceph_storage:9", "fix_state": "Fix deferred", "package_name": "libarrow", "product_name": "Red Hat Ceph Storage 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "javapackages-tools:201801/apache-commons-compress", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "jmc", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Affected", "package_name": "zstd-jni", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "maven3.9", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "zstd-jni", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "zstd-jni", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-spark-operator-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-th06-cpu-torch210-py312-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-th06-cpu-torch291-py312-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-th06-cuda130-torch210-py312-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-th06-cuda130-torch291-py312-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-th06-rocm64-torch291-py312-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-th-torch-cpu-py312-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-th-torch-cuda-py312-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}], "public_date": "2026-09-09T14:32:44Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-87824\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-87824\nhttps://github.com/luben/zstd-jni\nhttps://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/Zstd.java\nhttps://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/native/jni_zdict.c\nhttps://github.com/luben/zstd-jni/commit/53d3c6342883f7d6717b2477a7f9c1b4a4a56980\nhttps://github.com/luben/zstd-jni/commit/bba6cfca2c0897f1fa004f4193247479f10da853\nhttps://github.com/luben/zstd-jni/releases/tag/v1.5.7-14\nhttps://github.com/luben/zstd-jni/security/advisories/GHSA-257p-3h6w-pg7h\nhttps://www.vulncheck.com/advisories/zstd-jni-1.3.3-1-through-1.5.7-13-out-of-bounds-read-via-zstd-trainfrombufferdirect"], "statement": "Red Hat has determined that CVE-2026-87824 affects Red Hat products that include the zstd-jni library in a vulnerable version. The vulnerability can allow a remote attacker to terminate the Java Virtual Machine by supplying crafted sample lengths to the dictionary-training function.", "threat_severity": "Important"}

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