CVE-2026-87795
zstd-jni 1.2.0 through 1.5.7-13 Out-of-Bounds Read via ZstdDictCompress
CVSS Score
8.2
EPSS Score
0.0%
EPSS Percentile
0th
zstd-jni versions before 1.5.7-14 fail to validate offset and length parameters in the ZstdDictCompress constructor, allowing out-of-bounds memory reads. Attackers can supply untrusted offset or length values to read native heap memory into the compression dictionary, typically causing JVM crashes.
| CWE | CWE-125 |
| Vendor | luben |
| Product | zstd-jni |
| Published | Sep 9, 2026 |
| Last Updated | Sep 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Affected Versions
luben / zstd-jni
1.2.0 < 1.5.7-14
References
github.com: https://github.com/luben/zstd-jni/security/advisories/GHSA-ff36-7w3w-g8rm github.com: https://github.com/luben/zstd-jni/commit/0d64de4dee6606ff506be36c7f2e714ad0c80fdb github.com: https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/ZstdDictCompress.java github.com: https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/native/jni_fast_zstd.c github.com: https://github.com/luben/zstd-jni/commit/1c4e5a6c3ce8458095225d987d669e6a0937734a github.com: https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14 github.com: https://github.com/luben/zstd-jni vulncheck.com: https://www.vulncheck.com/advisories/zstd-jni-1.2.0-through-1.5.7-13-out-of-bounds-read-via-zstddictcompress
Credits
Yu Bao, PayPal Cyber Security Team