A vulnerability described as critical has been identified in svaarala duktape up to 2.99.99 . This issue affects some unknown processing of the file duk_api_bytecode.c . Executing a manipulation of the argument count_instr can lead to memory corruption. This vulnerability appears as CVE-2026-12216 . The attack requires local access. In addition, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.