Threat Advisory

Critical Apache Kvrocks Vulnerability Enables Remote Code Execution

Threat: Vulnerability
Targeted Region: Global
Targeted Sector: Technology & IT
Criticality: High
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EXECUTIVE SUMMARY:

Multiple security vulnerabilities have been identified in Apache Kvrocks, a distributed key‑value NoSQL database, affecting versions 1.0.0 through 2.15.0. The flaws span buffer overflows, unsafe Lua sandbox execution, improper permission checks, path traversal, and integer overflow, each capable of causing remote code execution, denial‑of‑service, or unauthorized data manipulation. Because Kvrocks is often used as a high‑capacity alternative to Redis for critical enterprise data stores, successful exploitation could lead to service interruption, loss of data integrity, and potential breach of confidential information. The overall risk is high, with no confirmed active exploitation but a strong likelihood of targeting by skilled adversaries.[/subscribe_to_unlock_form]

EXECUTIVE SUMMARY:

Multiple security vulnerabilities have been identified in Apache Kvrocks, a distributed key‑value NoSQL database, affecting versions 1.0.0 through 2.15.0. The flaws span buffer overflows, unsafe Lua sandbox execution, improper permission checks, path traversal, and integer overflow, each capable of causing remote code execution, denial‑of‑service, or unauthorized data manipulation. Because Kvrocks is often used as a high‑capacity alternative to Redis for critical enterprise data stores, successful exploitation could lead to service interruption, loss of data integrity, and potential breach of confidential information. The overall risk is high, with no confirmed active exploitation but a strong likelihood of targeting by skilled adversaries.[emaillocker id="1283"]

  • CVE-2026-46752 with a CVSS score of 10.0 – A stack buffer overflow in the Lua bit.tohex() function can be triggered by sending crafted Lua scripts, allowing a remote attacker to execute arbitrary code on the server.
  • CVE-2026-41566 – Improper permission handling for the APPLYBATCH command permits unauthorized users to perform batch operations, requiring only basic authentication to abuse low‑privilege accounts.
  • CVE-2026-46751 – The loadstring function inside the Lua sandbox is unsafe, enabling attackers who can inject Lua code to run unvalidated bytecode and potentially achieve code execution.
  • CVE-2026-45188 – Path traversal during replication synchronization allows an attacker controlling a replication source to read arbitrary files on the host system.
  • CVE-2026-54226 – An integer overflow can be triggered by crafted numeric values, resulting in a remote denial‑of‑service for any network client that can reach the Kvrocks service.

These vulnerabilities collectively present a critical exposure for any organization relying on Kvrocks for mission‑critical data. If left unaddressed, attackers could disrupt services, corrupt data, or gain unauthorized code execution, leading to operational downtime and potential regulatory fallout. Immediate attention is required to mitigate the high‑impact risk.

RECOMMENDATION:

  • We recommend you to update Apache Kvrocks to version 2.16.0.

REFERENCES:

The following reports contain further technical details:
https://securityonline.info/apache-kvrocks-vulnerabilities/

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