CVE-2026-87795
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.
- Published Sep 9, 2026
- CVSS 8.8 high
- 0.6% chance of exploitation in the next 30 days (EPSS)
- A fix is available