CVE-2026-18024 in PostgreSQL

Resumen

por MITRE • 2026-08-13

Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a specific allocation, via a crafted text value. This is the same class of defect that CVE-2026-2006 fixed, though this instance has less impact. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

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• Responsable: PostgreSQL
• Reservar: 2026-07-28
• Divulgación: 2026-08-13
• Moderación: aceptado
• Artículo: VDB-389435
• CPE: listo
• CWE: CWE-125 (confirmado)
• CVSS: 4.3 (VulDB)
• EPSS: 0.00000
• KEV: no
• Actividades: muy bajo
• Sector: Pharma, Insurance, ...

Fuentes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-18024
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-18024
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-18024/