CVE-2026-88340
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Sep 22, 2026
Vendor
unknown
Description
An invalid pointer release vulnerability exists in YARA 4.5.8 during deserialization of compiled .yrc rule files. The vulnerability is caused by insufficient validation of external-variable pointers, which may lead to invalid free in yr_rules_destroy() or wild pointer access in yr_object_create(). An attacker can provide a specially crafted .yrc file that causes memory corruption and application crash.