CVE-2026-87825
zstd-jni 1.3.8-4 through 1.5.7-13 Use-After-Free of Compression and Decompression Dictionaries
CVSS 4.0 7.0 HIGHCVSS 3.1 7.7 HIGHCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-87825
Publishedzstd-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.
Read the publisher's advisoryAffected versions, risk and source history
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CVE-2026-87825 · CVE overview and exploitation status
cve-program · CVE-2026-87825
- https://github.com/luben/zstd-jni/security/advisories/GHSA-947w-pxjj-c7m9
- https://github.com/luben/zstd-jni/commit/393d7311766abbc285b149302c0fe1f94b16d555
- https://github.com/luben/zstd-jni/commit/a560131d7834598afd9cea6b7c107bc88e915936
- 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/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/BaseZstdBufferDecompressingStreamNoFinalizer.java
- https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14
- https://github.com/luben/zstd-jni/commit/0827ed02551bbd8d6f8e4bbff99d83bf50f91938
- https://github.com/luben/zstd-jni
- https://www.vulncheck.com/advisories/zstd-jni-1.3.8-4-through-1.5.7-13-use-after-free-of-compression-and-decompression-dictionaries
Related changes
Linked by CVE identifierNo related changes are available here.