CVE-2026-103484

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

IVFFlat index build in pgvector before 0.8.7 allows a database user to write data out-of-bounds, which can lead to arbitrary code execution.

Published 2026-10-01. Last modified 2026-10-02.