CVE-2026-87824zstd-jni 1.3.3-1 through 1.5.7-13 Out-of-Bounds Read via Zstd.trainFromBufferDirect
Updated under an hour ago ()
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It affects luben zstd-jni. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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 the native implementation to walk past the buffer allocation, resulting in JVM termination.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 20, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
luben zstd-jni luben:zstd_jni (from the name) | from 1.3.3-1 before 1.5.7-14 | CNA record |
References
- https://github.com/luben/zstd-jni/security/advisories/GHSA-257p-3h6w-pg7hvendor-advisory
- https://github.com/luben/zstd-jni/commit/bba6cfca2c0897f1fa004f4193247479f10da853patch
- https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/native/jni_zdict.ctechnical-description
- https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/Zstd.javatechnical-description
- https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14release-notes
- https://github.com/luben/zstd-jni/commit/53d3c6342883f7d6717b2477a7f9c1b4a4a56980technical-description, patch
- https://github.com/luben/zstd-jniproduct
- https://www.vulncheck.com/advisories/zstd-jni-1.3.3-1-through-1.5.7-13-out-of-bounds-read-via-zstd-trainfrombufferdirectthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.