CVE-2026-87877

EUVD-2026-75024
zstd-jni versions before 1.5.7-14 fail to validate closed state in setDict, setLongMax, setLevel and setRefMultipleDDicts methods of stream classes. Attackers can call these methods on closed streams to write through freed native pointers, corrupting unrelated objects or crashing the JVM.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.7 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 9.54%
Debian logo
Debian Releases
Debian Product
Codename
zstd-jni-java
bookworm
postponed
forky
1.5.7-23+ds-2
fixed
sid
1.5.7-23+ds-2
fixed
trixie
no-dsa
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
zstd-jni-java
jammy
dne
noble
needs-triage
resolute
needs-triage
Common Weakness Enumeration
Vulnerability Media Exposure
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/BaseZstdBufferDecompressingStreamNoFinalizer.java
https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/ZstdInputStreamNoFinalizer.java
https://github.com/luben/zstd-jni/commit/0827ed02551bbd8d6f8e4bbff99d83bf50f91938
https://github.com/luben/zstd-jni/commit/393d7311766abbc285b149302c0fe1f94b16d555
https://github.com/luben/zstd-jni/commit/f38f9a1563113d96d0fc38baee543f7457dd8a8e
https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14
https://github.com/luben/zstd-jni/security/advisories/GHSA-2jw3-mg7f-vw4q
https://www.vulncheck.com/advisories/zstd-jni-1.3.8-4-through-1.5.7-13-use-after-free-via-setters-called-after-close
https://github.com/luben/zstd-jni/security/advisories/GHSA-2jw3-mg7f-vw4q