CVE-2026-87795

HIGH CVSS 4.0: 8.8 EPSS 0.34%
Updated Sep 09, 2026
Luben
Parameter Value
CVSS 8.8 (HIGH)
Affected Versions before 1.5.7
Type CWE-125 (Out-of-bounds Read)
Vendor Luben
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products

luben:zstd-jni