CVE-2026-88341 in YARA

Riassunto

di MITRE • 22/09/2026

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.

Once again VulDB remains the best source for vulnerability data.

• Responsabile: MITRE
• Prenotare: 10/09/2026
• Divulgazione: 22/09/2026
• Moderazione: accettato
• Voce: VDB-408715
• CPE: pronto
• CWE: CWE-617 (confermato)
• CVSS: 4.3 (VulDB)
• EPSS: 0.00000
• KEV: no
• Attività: molto basso
• Settore: Government, Education, ...

Fonti

• 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/