Description
Flowise is a drag & drop user interface to build a customized large language model flow. In versions prior to 3.0.8, WriteFileTool and ReadFileTool in Flowise do not restrict file path access, allowing authenticated attackers to exploit this vulnerability to read and write arbitrary files to any path in the file system, potentially leading to remote command execution. Flowise 3.0.8 fixes this vulnerability.
Affected products
flowiseai: flowise
References6
- github.com/FlowiseAI/Flowise/security/advisories/GHSA-j44m-5v8f… ExploitVendor Advisory
- github.com/FlowiseAI/Flowise/security/advisories/GHSA-jv9m-vf54… ExploitVendor Advisory
- github.com/FlowiseAI/Flowise/security/advisories/GHSA-j44m-5v8f… ExploitVendor Advisory
- github.com/FlowiseAI/Flowise/security/advisories/GHSA-jv9m-vf54… ExploitVendor Advisory
- github.com/FlowiseAI/Flowise/commit/1fb12cd93143592a18995f63b78… Patch
- github.com/FlowiseAI/Flowise/releases/tag/flowise%403.0.8 Release Notes
Metrics
- CVSS 3.1
-
9.9
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - EPSS — exploit probability
- 14% percentile: 97 · as of 9 November 2026
- CWE
- CWE-22
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.