CVE-2026-87824

Published: Sep 9, 2026Modified: Sep 20, 2026

8.7

Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

Description

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.

Related CWEs

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (8)

https://github.com/luben/zstd-jni

Source: disclosure@vulncheck.com

https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/Zstd.java

Source: disclosure@vulncheck.com

https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/native/jni_zdict.c

Source: disclosure@vulncheck.com

https://github.com/luben/zstd-jni/commit/53d3c6342883f7d6717b2477a7f9c1b4a4a56980

Source: disclosure@vulncheck.com

https://github.com/luben/zstd-jni/commit/bba6cfca2c0897f1fa004f4193247479f10da853

Source: disclosure@vulncheck.com

https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14

Source: disclosure@vulncheck.com

https://github.com/luben/zstd-jni/security/advisories/GHSA-257p-3h6w-pg7h

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/zstd-jni-1.3.3-1-through-1.5.7-13-out-of-bounds-read-via-zstd-trainfrombufferdirect

Source: disclosure@vulncheck.com

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