Redis Lua HEAP overflow in cjson lib (Kvrocks 2.0.42.15.0)
CVE-2026-46752 Published on June 25, 2026
Apache Kvrocks: Stack buffer overflow in Lua bit.tohex()
Redis Lua HEAP overflow in cjson library vulnerability in Apache Kvrocks.
This issue affects Apache Kvrocks: from 2.0.4 through 2.15.0.
Users are recommended to upgrade to version 2.16.0, which fixes the issue.
Vulnerability Analysis
CVE-2026-46752 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Products Associated with CVE-2026-46752
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Affected Versions
Apache Software Foundation Apache Kvrocks:- Version 2.0.4, <= 2.15.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.