CerberusMrXi/Flowise-CVE-2026-58057-exploit

PoC

Flowise Windows RCE exploit for CVE-2026-58057. Bypasses environment variable validation via case-sensitive flaw. Uses node_options to inject arbitrary code through MCP stdio. Supports reverse shell, persistence, file upload, credential dumping. For authorized security testing only.

view exploit source poc_in_githubauthor CerberusMrXipublished 2026-07-23catalog poc_in_github
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exploited CVEs (1)

Known CVEs related to this entry.

IDseverity exploitable
CVE-2026-58057US—Exploit
Flowise before 3.1.3 validates Custom MCP stdio environment variables against a denylist using a case-sensitive comparison, so on Windows, where environment names are case-insensit…
scry

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