CVE-2026-87795

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 is aware of an out-of-bounds read in zstd-jni caused by insufficient validation of offset and length values in the ZstdDictCompress constructor. An attacker who can influence these values may cause a JVM crash and potentially disclose native heap data. Affected Red Hat products are tracked through their existing remediation workflow.

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.

Update com.github.luben/zstd-jni to version 1.5.7-14 or later. Until updated, do not pass attacker-controlled offset or length values to ZstdDictCompress.