Heap overflow in Redis Lua cjson library in Apache Kvrocks
CVE-2026-46752 is a memory corruption vulnerability in Apache Kvrocks affecting versions 2.0.4 through 2.15.0. The issue is described in the advisory as a Redis Lua heap overflow in the bundled or integrated cjson library used by Kvrocks' Lua scripting functionality. Supporting context also references a stack buffer overflow in Lua bit.tohex(), but the primary vendor description identifies the flaw as a heap overflow in cjson. Successful exploitation would involve triggering the vulnerable Lua-related code path with crafted input, causing out-of-bounds memory writes on the heap and resulting in process memory corruption.
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Recent activity
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A critical memory corruption vulnerability in Apache Kvrocks, described as a Redis Lua heap overflow in the cjson library and also referenced as a stack buffer overflow in Lua bit.tohex(). It affects Apache Kvrocks versions 2.0.4 through 2.15.0 and is remotely exploitable.
A vulnerability in Apache Kvrocks affecting Redis Lua/cjson handling, described as a stack buffer overflow in Lua bit.tohex() and a heap overflow in the cjson library. It affects Apache Kvrocks versions 2.0.4 through 2.15.0.
A heap overflow vulnerability in the cjson library used by Redis Lua within Apache Kvrocks, affecting versions 2.0.4 through 2.15.0.
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Cross-references every affected SKU, including bundled OEM variants.
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