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CVE-2026-88341

MEDIUM CVSS 5.5 View on NVD ↗

Description

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.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published: Sep 22, 2026 20:17 UTC Modified: Sep 23, 2026 15:17 UTC