CVE-2026-88341 – A reachable assertion vulnerability exists in YARA 4.5.8 when loading crafted .yrc compile

A reachable assertion vulnerability exists in YARA 4.5.8 when loading crafted .yrc compiled rule files. An attacker can provide a malicious file with an invalid arena configuration (num_buffers=0) that triggers an assertion failure in yr_arena_get_ptr(), causing the application to terminate.