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Tue, 23 Jun 2026 14:30:00 +0000
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| Metrics |
ssvc
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Tue, 23 Jun 2026 12:45:00 +0000
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| Description | Flowise before 3.1.2 contains multiple OS command injection vulnerabilities in the Custom MCP Server feature due to incomplete command-flag validation and a regex bypass in local file access restrictions. An attacker with a Flowise account of any role, or API access with view/update permissions for chatflows, can configure a malicious MCP server to bypass the validateCommandFlags blocklist (for example, 'docker build' is not blocked, and 'npx --yes' is not blocked while only '-y' is) and the validateArgsForLocalFileAccess checks, resulting in execution of arbitrary commands on the Flowise host. | |
| Title | Flowise - Remote Code Execution via MCP Security Bypass in validateCommandFlags and validateArgsForLocalFileAccess | |
| First Time appeared |
Flowiseai
Flowiseai flowise |
|
| Weaknesses | CWE-78 | |
| CPEs | cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Flowiseai
Flowiseai flowise |
|
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-06-24T11:17:02.895Z
Reserved: 2026-06-20T01:47:54.000Z
Link: CVE-2026-56274
Updated: 2026-06-23T13:05:11.340Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-06-26T14:30:17Z