CVE-2026-41268: Flowiseai Flowise

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, Flowise is vulnerable to a critical unauthenticated remote command execution (RCE) vulnerability. It can be exploited via a parameter override bypass using the FILE-STORAGE:: keyword combined with a NODE_OPTIONS environment variable injection. This allows for the execution of arbitrary system commands with root privileges within the containerized Flowise instance, requiring only a single HTTP request and no authentication or knowledge of the instance. This vulnerability is fixed in 3.1.0.

Affected products

• Flowiseai Flowise: before 3.1.0 (fixed in 3.1.0)

Published 2026-04-23. Last modified 2026-06-17.