CVE-2026-87795

EUVD-2026-74791
zstd-jni versions before 1.5.7-14 fail to validate offset and length parameters in the ZstdDictCompress constructor, allowing out-of-bounds memory reads. Attackers can supply untrusted offset or length values to read native heap memory into the compression dictionary, typically causing JVM crashes.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.2 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Debian logo
Debian Releases
Debian Product
Codename
zstd-jni-java
bookworm
vulnerable
forky
vulnerable
sid
vulnerable
trixie
vulnerable
Common Weakness Enumeration
References
https://github.com/luben/zstd-jni
https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/ZstdDictCompress.java
https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/native/jni_fast_zstd.c
https://github.com/luben/zstd-jni/commit/0d64de4dee6606ff506be36c7f2e714ad0c80fdb
https://github.com/luben/zstd-jni/commit/1c4e5a6c3ce8458095225d987d669e6a0937734a
https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14
https://github.com/luben/zstd-jni/security/advisories/GHSA-ff36-7w3w-g8rm
https://www.vulncheck.com/advisories/zstd-jni-1.2.0-through-1.5.7-13-out-of-bounds-read-via-zstddictcompress