CVE-2026-88341 in YARA

Resumen

por MITRE • 2026-09-22

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.

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• Responsable: MITRE
• Reservar: 2026-09-10
• Divulgación: 2026-09-22
• Moderación: aceptado
• Artículo: VDB-408715
• CPE: listo
• CWE: CWE-617 (confirmado)
• CVSS: 4.3 (VulDB)
• EPSS: 0.00000
• KEV: no
• Actividades: muy bajo
• Sector: Energy, Education, ...

Fuentes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-88341
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-88341
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-88341/