CVE-2026-87825

Published: Sep 9, 2026Modified: Sep 14, 2026

7.0

Vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/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:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/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 contains a use-after-free vulnerability where streams and contexts hold a dictionary's shared lock only during the load call, allowing the dictionary to be closed while still referenced. Attackers can close a dictionary after associating it with a stream or context, causing subsequent read or write operations to access freed native memory, resulting in silent data corruption or JVM crashes.

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (10)

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/BaseZstdBufferDecompressingStreamNoFinalizer.java

Source: disclosure@vulncheck.com

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

Source: disclosure@vulncheck.com

https://github.com/luben/zstd-jni/commit/0827ed02551bbd8d6f8e4bbff99d83bf50f91938

Source: disclosure@vulncheck.com

https://github.com/luben/zstd-jni/commit/393d7311766abbc285b149302c0fe1f94b16d555

Source: disclosure@vulncheck.com

https://github.com/luben/zstd-jni/commit/a560131d7834598afd9cea6b7c107bc88e915936

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-947w-pxjj-c7m9

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/zstd-jni-1.3.8-4-through-1.5.7-13-use-after-free-of-compression-and-decompression-dictionaries

Source: disclosure@vulncheck.com

https://github.com/luben/zstd-jni/security/advisories/GHSA-947w-pxjj-c7m9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

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