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CVE-2026-89046— zstd-jni 1.5.5-6 through 1.5.7-13 Out-of-Bounds Read via Negative Offset

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.

zstd-jni 版本 1.5.5-6 至 1.5.7-13 存在一个越界读取漏洞，位于 函数中，该函数未对负数的 参数进行有效校验。攻击者可以传入负的偏移值，从而绕过边界检查，使程序进入原生帧头解析器，导致发生越界内存读取，进而可能引发信息泄露或 JVM 崩溃。

CVSS 8.2 · High
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I. Basic Information for CVE-2026-89046

Vulnerability Information
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Vulnerability Title
zstd-jni 1.5.5-6 through 1.5.7-13 Out-of-Bounds Read via Negative Offset
Source: CVE Program / CVE List V5
Vulnerability Description
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 out-of-bounds memory reads that lead to information disclosure or 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 1.5.5-6 ~ 1.5.7-14 -

II. Public POCs for CVE-2026-89046

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III. Intelligence Information for CVE-2026-89046

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Patches & Fixes for CVE-2026-89046 (1)

Vendor Advisories for CVE-2026-89046 (2)

Proof of Concept for CVE-2026-89046 (1)

Vendor Pages for CVE-2026-89046 (1)

Other References for CVE-2026-89046 (1)

IV. Related Vulnerabilities

Same product: zstd-jni
Same vendor: luben
Same weakness: CWE-125

V. Comments for CVE-2026-89046

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