CVE-2026-87824

zstd-jni before 1.5.7-14 fails to validate the samples buffer capacity in Zstd.trainFromBufferDirect, allowing attackers to read past buffer boundaries by supplying oversized per-sample lengths. Attackers can trigger out-of-bounds memory access by providing crafted sample length arrays that cause the native implementation to walk past the buffer allocation, resulting in JVM termination.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/luben/zstd-jni
https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/Zstd.java
https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/native/jni_zdict.c
https://github.com/luben/zstd-jni/commit/53d3c6342883f7d6717b2477a7f9c1b4a4a56980
https://github.com/luben/zstd-jni/commit/bba6cfca2c0897f1fa004f4193247479f10da853
https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14
https://github.com/luben/zstd-jni/security/advisories/GHSA-257p-3h6w-pg7h
https://www.vulncheck.com/advisories/zstd-jni-1.3.3-1-through-1.5.7-13-out-of-bounds-read-via-zstd-trainfrombufferdirect

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-09 15:17

Updated : 2026-09-09 20:16

NVD link : CVE-2026-87824

Mitre link : CVE-2026-87824

CVE.ORG link : CVE-2026-87824

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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