CVE-2026-91932: Improper Input Validation in FlowiseAI Flowise
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.
AI Analysis
Technical Summary
CVE-2026-91932 is a vulnerability in Flowise prior to version 3.1.4 where improper input validation in the MCP server configuration permits authenticated attackers to bypass path validation. Specifically, the 'cwd' parameter is not properly validated, enabling attackers to manipulate the working directory and use clean filenames in the args array to execute arbitrary code remotely. This vulnerability has a CVSS 3.1 score of 8.5, indicating high severity with network attack vector, high impact on confidentiality, integrity, and availability, and requiring low privileges but high attack complexity.
Potential Impact
Successful exploitation allows remote code execution with high impact on confidentiality, integrity, and availability of the affected system. The attacker must be authenticated but can execute arbitrary code remotely by bypassing path validation controls.
Mitigation Recommendations
A fix is available in Flowise version 3.1.4. Users should upgrade to version 3.1.4 or later to remediate this vulnerability. No additional mitigation guidance is provided in the vendor advisory.
CVE-2026-91932: Improper Input Validation in FlowiseAI Flowise
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.
CVSS v3.1
Score 8.5high
Affected software
FlowiseAI
Flowise
pkg:github/flowiseai/FlowiseRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-91932 is a vulnerability in Flowise prior to version 3.1.4 where improper input validation in the MCP server configuration permits authenticated attackers to bypass path validation. Specifically, the 'cwd' parameter is not properly validated, enabling attackers to manipulate the working directory and use clean filenames in the args array to execute arbitrary code remotely. This vulnerability has a CVSS 3.1 score of 8.5, indicating high severity with network attack vector, high impact on confidentiality, integrity, and availability, and requiring low privileges but high attack complexity.
Potential Impact
Successful exploitation allows remote code execution with high impact on confidentiality, integrity, and availability of the affected system. The attacker must be authenticated but can execute arbitrary code remotely by bypassing path validation controls.
Mitigation Recommendations
A fix is available in Flowise version 3.1.4. Users should upgrade to version 3.1.4 or later to remediate this vulnerability. No additional mitigation guidance is provided in the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-15T11:06:02.263Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa9651855bf5e2cf502eafa
Added to database: 09/15/2026, 15:32:40 UTC
Last enriched: 09/15/2026, 16:02:36 UTC
Last updated: 09/16/2026, 03:12:08 UTC
Views: 8
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