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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
luben zstd-jni unaffected
Version Status Constraints
1.5.5-6 affected < 1.5.7-14

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/luben/zstd-jni cve-icon cve-icon
https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/Zstd.java#L730 cve-icon cve-icon
https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/native/jni_zstd.c#L87 cve-icon cve-icon
https://github.com/luben/zstd-jni/commit/dd08685ef913a32e76fb27f43470035c06758646 cve-icon cve-icon
https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14 cve-icon cve-icon
https://github.com/luben/zstd-jni/security/advisories/GHSA-rm53-6wf5-f34m cve-icon cve-icon cve-icon
https://www.vulncheck.com/advisories/zstd-jni-1.5.5-6-through-1.5.7-13-out-of-bounds-read-via-negative-offset cve-icon cve-icon
History

Fri, 11 Sep 2026 08:00:00 +0000

Type Values Removed Values Added
First Time appeared Luben
Luben zstd-jni
Vendors & Products Luben
Luben zstd-jni

Thu, 10 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 10 Sep 2026 17:45:00 +0000

Type Values Removed Values Added
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.
Title zstd-jni 1.5.5-6 through 1.5.7-13 Out-of-Bounds Read via Negative Offset
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H'}

cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-10T18:10:40.912Z

Reserved: 2026-09-10T16:45:23.295Z

Link: CVE-2026-89046

cve-icon Vulnrichment

Updated: 2026-09-10T18:10:30.509Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-10T18:18:16.560

Modified: 2026-09-10T19:54:25.810

Link: CVE-2026-89046

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-11T07:45:06Z

Weaknesses