CVE-2026-87825 zstd-jni 1.3.8-4 through 1.5.7-13 Use-After-Free of Compression and Decompression Dictionaries

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, causi...

CVE-2026-87824 zstd-jni 1.3.3-1 through 1.5.7-13 Out-of-Bounds Read via Zstd.trainFromBufferDirect

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...

CVE-2026-87824

zstd-jni (Java binding for the zstd compression library) versions 1.3.3-1 through 1.5.7-13 contain an out-of-bounds read vulnerability in the Zstd.trainFromBufferDirect method. The root cause is a failure to validate the samples buffer capacity in the native implementation (jni_zdict.c): an attac...

CVE-2026-87825

zstd-jni versions 1.3.8-4 through 1.5.7-13 contain a use-after-free vulnerability in compression and decompression dictionaries. The root cause is that streams and contexts hold a dictionary's shared lock only during the load call, allowing the dictionary to be closed while still referenced. Subs...

EUVD-2026-75022

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...

CVE-2026-87824 zstd-jni 1.3.3-1 through 1.5.7-13 Out-of-Bounds Read via Zstd.trainFromBufferDirect

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...

CVE-2026-87824 zstd-jni 1.3.3-1 through 1.5.7-13 Out-of-Bounds Read via Zstd.trainFromBufferDirect

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...

CVE-2026-87825

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, causi...

CVE-2026-87824

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...

EUVD-2026-75023

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, causi...

CVE-2026-87825 zstd-jni 1.3.8-4 through 1.5.7-13 Use-After-Free of Compression and Decompression Dictionaries

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, causi...

CVE-2026-87823 zstd-jni 1.1.1 through 1.5.7-13 Out-of-Bounds Read via Direct ByteBuffer Frame-Size Methods

zstd-jni before 1.5.7-14 performs 32-bit signed bounds checks on three direct-ByteBuffer frame-size native methods, allowing out-of-bounds memory reads via negative or overflowing offsets. Attackers can supply negative offset values near Integer.MINVALUE to read unmapped memory, causing JVM...

CVE-2026-87823 zstd-jni 1.1.1 through 1.5.7-13 Out-of-Bounds Read via Direct ByteBuffer Frame-Size Methods

zstd-jni before 1.5.7-14 performs 32-bit signed bounds checks on three direct-ByteBuffer frame-size native methods, allowing out-of-bounds memory reads via negative or overflowing offsets. Attackers can supply negative offset values near Integer.MINVALUE to read unmapped memory, causing JVM...

CVE-2026-87823

zstd-jni (Java JNI binding for Zstandard compression) versions 1.1.1 through 1.5.7-13 are vulnerable to an out-of-bounds read caused by 32-bit signed bounds checks in three direct-ByteBuffer frame-size native methods. An attacker can supply negative offset values near Integer.MIN_VALUE , causing ...

EUVD-2026-75021

zstd-jni before 1.5.7-14 performs 32-bit signed bounds checks on three direct-ByteBuffer frame-size native methods, allowing out-of-bounds memory reads via negative or overflowing offsets. Attackers can supply negative offset values near Integer.MINVALUE to read unmapped memory, causing JVM...

CVE-2026-87823

zstd-jni before 1.5.7-14 performs 32-bit signed bounds checks on three direct-ByteBuffer frame-size native methods, allowing out-of-bounds memory reads via negative or overflowing offsets. Attackers can supply negative offset values near Integer.MINVALUE to read unmapped memory, causing JVM...

CVE-2026-87823 zstd-jni 1.1.1 through 1.5.7-13 Out-of-Bounds Read via Direct ByteBuffer Frame-Size Methods

zstd-jni before 1.5.7-14 performs 32-bit signed bounds checks on three direct-ByteBuffer frame-size native methods, allowing out-of-bounds memory reads via negative or overflowing offsets. Attackers can supply negative offset values near Integer.MINVALUE to read unmapped memory, causing JVM...

CVE-2026-87795

A flaw was found in zstd-jni. This vulnerability occurs due to insufficient validation of offset and length parameters within the ZstdDictCompress constructor. An attacker can exploit this by providing untrusted values, leading to an out-of-bounds memory read. This can result in the disclosure of...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read due to the ZstdDictCompressbyte dict, int offset, int length, int level constructor in ZstdDictCompress.java. An attacker can trigger a native heap read, crash the JVM, or leak adjacent memory by supplying a negative...

CVE-2026-87795

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 crashe...