High [CVE-2026-87795] Out-of-bounds read in ZstdDictCompress constructor leads to denial of service
This high-severity Red Hat Linux advisory covers CVE-2026-87795 affecting Exploit Intelligence, OpenShift Developer Tools and Services, Red Hat build of Apache Camel 4 for Quarkus 3.
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Summary
A flaw was found in zstd-jni. This vulnerability occurs due to insufficient validation of offset and length parameters within the `ZstdDictCompress` constructor.
An attacker can exploit this by providing untrusted values, leading to an out-of-bounds memory read. This can result in the disclosure of sensitive native heap memory and cause the Java Virtual Machine (JVM) to crash, leading to a denial of service.
Red Hat severity: Important — CVSS 8.2 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H).
Affected Red Hat products: Exploit Intelligence; OpenShift Developer Tools and Services; Red Hat build of Apache Camel 4 for Quarkus 3; Red Hat build of Apache Camel for Spring Boot 4; Red Hat build of Apicurio Registry 3; Red Hat build of Debezium 3; Red Hat build of Quarkus; Red Hat Ceph Storage 9; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Fuse 7; Red Hat JBoss Enterprise Application Platform 8; Red Hat JBoss Enterprise Application Platform Expansion Pack; Red Hat OpenShift AI (RHOAI).
Red Hat lists Red Hat Hardened Images as not affected. Red Hat does not currently list a fixing RHSA for this CVE.
Affected products named by the advisory: Red Hat package: jmc.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
- 1.5.7-14
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation
Upgrade to a fixed release: 1.5.7-14. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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