CVE-2025-71336: Flowise - Unsandboxed Remote Code Execution via Custom MCP
Fixed in 3.0.6 · Affected: Flowise before 3.0.6 · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 67% of scored CVEs
DescriptionCVE.org
Flowise before 3.0.6 (affected versions 2.2.7-patch.1 and earlier) contains an unsandboxed remote code execution vulnerability in the Custom MCP feature, which is designed to execute OS commands such as launching local MCP servers. Because Flowise's authentication and authorization model is minimal and lacks role-based access control, and the default installation runs without authentication unless FLOWISE_USERNAME and FLOWISE_PASSWORD are set, an attacker can send a crafted JSON payload with the header 'x-request-from: internal' to the /api/v1/node-load-method/customMCP endpoint to execute arbitrary OS commands, resulting in complete compromise of the platform container or server.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Flowise · Flowisebefore 3.0.6
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CoverageNo articles yet
No CyberSIXT article names CVE-2025-71336 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.