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CVE-2026-87795— zstd-jni 1.2.0 through 1.5.7-13 Out-of-Bounds Read via ZstdDictCompress

Quick assessment

Affected
luben zstd-jni
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 1.5.7-14 之前的 zstd-jni 版本中， 构造函数未能验证 offset 和 length 参数，从而导致越界内存读取。攻击者可以通过提供不可信的 offset 或 length 值，将 native 堆内存读取到压缩字典中，通常会导致 JVM 崩溃。

CVSS 8.2 · High
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I. Basic Information for CVE-2026-87795

Vulnerability Information
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Vulnerability Title
zstd-jni 1.2.0 through 1.5.7-13 Out-of-Bounds Read via ZstdDictCompress
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
luben zstd-jni 1.2.0 ~ 1.5.7-14 -

II. Public POCs for CVE-2026-87795

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III. Intelligence Information for CVE-2026-87795

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Other References for CVE-2026-87795 (6)

IV. Related Vulnerabilities

Same weakness: CWE-125

V. Comments for CVE-2026-87795

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