CVE-2026-56273: Flowise

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Flowise before 3.1.0 contains a path traversal vulnerability in Faiss and SimpleStore vector store implementations that accept unsanitized basePath parameters from authenticated users. Attackers with valid API tokens can write vector store data to arbitrary filesystem locations, potentially enabling code execution or data exfiltration.

Affected products

• Flowise Flowise: before 3.1.0 (fixed in 3.1.0)

Published 2026-07-08. Last modified 2026-07-09.