CVE-2026-87824

A flaw was found in zstd-jni. Attackers can exploit this by supplying oversized per-sample lengths to the Zstd.trainFromBufferDirect function, which fails to validate the samples buffer capacity. This allows for reading past buffer boundaries, leading to out-of-bounds memory access and ultimately...

CVE-2026-87877

A flaw was found in zstd-jni. An attacker could exploit a use-after-free vulnerability by calling specific methods on closed streams without proper validation. This could lead to memory corruption, potentially allowing the attacker to corrupt unrelated objects or cause the Java Virtual Machine JV...

CVE-2026-87825

A flaw was found in zstd-jni. This use-after-free vulnerability occurs because streams and contexts only hold a dictionary's shared lock during the load call, allowing the dictionary to be closed while still being referenced. A remote attacker could exploit this by closing a dictionary after...

CVE-2026-89045: Loop with Unreachable Exit Condition

zstd-jni versions 1.4.8-4 through 1.5.7-13 fail to validate negative length parameters in ZstdInputStreamNoFinalizer.read, allowing attackers to trigger infinite loops. Attackers can pass negative length values to cause the read method to spin indefinitely while holding the stream monitor, blocki...

CVE-2026-89046: Out-of-bounds Read

zstd-jni versions 1.5.5-6 through 1.5.7-13 contain an out-of-bounds read vulnerability in Zstd.getFrameContentSize that fails to validate negative srcPosition arguments. Attackers can supply negative offset values that bypass bounds checks and reach the native frame-header parser, causing...

PT-2026-89524

Name of the Vulnerable Software and Affected Versions zstd-jni versions 1.4.8-4 through 1.5.7-13 Description An issue exists where negative length parameters are not validated in the read function of ZstdInputStreamNoFinalizer. An attacker can provide negative length values to trigger an infinite...

zstd-jni DoS

The vulnerabilities of the functions setDict, setLongMax, and setLevel in the data compression library zstd-jni are related to the possibility of exploiting memory usage after deallocation. Exploiting these vulnerabilities could allow an attacker to cause a service failure...

PT-2026-89525

Name of the Vulnerable Software and Affected Versions zstd-jni versions 1.5.5-6 through 1.5.7-13 Description An out-of-bounds read occurs in the getFrameContentSize function due to a failure to validate negative srcPosition arguments. By providing negative offset values, an attacker can bypass...

ZstdDictCompress Code Execution

The vulnerability of the ZstdDictCompress component in the zstd-jni data compression library is related to reading data outside of the allowed range in memory. Exploiting this vulnerability could allow a remote attacker to execute arbitrary code...

zstd-jni Component DoS

The vulnerability of the ZstdCompressCtx and ZstdDecompressCtx components of the zstd-jni compression library lies in the possibility of exploiting memory after it is freed. Exploiting this vulnerability could allow an attacker to cause a service failure...

Linux Distros Unpatched Vulnerability : CVE-2026-89045

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - zstd-jni versions 1.4.8-4 through 1.5.7-13 fail to validate negative length parameters in ZstdInputStreamNoFinalizer.read, allowing attackers to trigger infinit...

zstd-jni Heap Buffer Overflow DoS

The vulnerability of the Zstd.trainFromBufferDirect function in the zstd-jni data compression library is related to reading beyond the allowed range of memory. Exploiting this vulnerability could allow a malicious actor to cause service failures...

Linux Distros Unpatched Vulnerability : CVE-2026-89046

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - zstd-jni versions 1.5.5-6 through 1.5.7-13 contain an out-of-bounds read vulnerability in Zstd.getFrameContentSize that fails to validate negative srcPosition...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read through Zstd.trainFromBufferDirect0 in src/main/native/jnizdict.c. An attacker can crash the JVM by supplying a direct samples buffer with an oversized sampleSizes array whose total length exceeds the buffer’s actual...

Use After Free

Overview Affected versions of this package are vulnerable to Use After Free through the dictionary handling in ZstdInputStreamNoFinalizer, ZstdOutputStreamNoFinalizer, ZstdCompressCtx, and ZstdDecompressCtx. An attacker can trigger native memory corruption or a JVM crash by closing a compression ...

Use After Free

Overview Affected versions of this package are vulnerable to Use After Free in the setDict, setLongMax, setLevel, and setRefMultipleDDicts methods of its streaming classes. An attacker can corrupt native heap state or crash the JVM by calling these setters on a stream after close, causing them to...

Integer Overflow or Wraparound

Overview Affected versions of this package are vulnerable to Integer Overflow or Wraparound in the findDirectByteBufferFrameCompressedSize, decompressedDirectByteBufferSize, and getDirectByteBufferFrameContentSize native handlers in src/main/native/jnizstd.c. An attacker can crash the JVM or...

DEBIAN-CVE-2026-87877

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...

CVE-2026-87877

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...

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...