CVE-2026-87824
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductLuben Zstd-jni
PublishedSep 9, 2026
First seenSep 9, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- luben zstd-jni1.5.7-14 or later
Patches
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| luben zstd-jni | 1.3.3-1 ≤ v < 1.5.7-14 | 1.5.7-14 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.