# CVE-2026-89046

## Summary

- **CVE ID:** CVE-2026-89046
- **Severity:** HIGH
- **CVSS Score:** 8.8 (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)
- **CWE:** CWE-125
- **Published:** Sep 10, 2026
- **Last Modified:** Sep 10, 2026

## 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.

## Affected Products

- luben — zstd-jni (1.5.5-6)

## References

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

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._