CVE-2026-91932: Flowise before 3.1.4 Remote Code Execution via cwd Parameter

Severity: high (CVSS 8.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-15 · updated 2026-09-16
Weakness: CWE-20

Description

Flowise before 3.1.4 contains a validation bypass vulnerability in MCP server configuration allowing authenticated attackers remote code execution through an unvalidated cwd parameter. Attackers can bypass path validation using clean filenames in the args array while controlling the working directory to execute malicious code.

Affected products

FlowiseAI Flowise: before 3.1.4 — fixed in 3.1.4

How to fix

Upgrade to a fixed version: FlowiseAI Flowise 3.1.4. Check the vendor advisory for mitigations.

References

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x7x8-95gh-42xm
https://www.vulncheck.com/advisories/flowise-before-3.1.4-remote-code-execution-via-cwd-parameter
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x7x8-95gh-42xm

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