CVE-2026-69263
Flowise: CVE-2025-8943 Patch Bypass: npm_config_yes bypasses MCP environment variable blocklist (Unauthenticated RCE)
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the mitigation for CVE-2025-8943 blocked -y and --yes flags on npx, but packages/components/nodes/tools/MCP/core.ts denied only PATH, LD_LIBRARY_PATH, DYLD_LIBRARY_PATH, and NODE_OPTIONS by exact environment-variable name. Because npm reads configuration from npm_config_* variables, setting npm_config_yes=true reproduced --yes behavior without using a blocked flag, causing npx to auto-install and execute the named package when a Custom MCP server launched. This issue is fixed in version 3.1.3.
| CWE | CWE-184 |
| Vendor | flowiseai |
| Product | flowise |
| Published | Aug 4, 2026 |
| Last Updated | Aug 4, 2026 |
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Affected Versions
FlowiseAI / Flowise
< 3.1.3
References
github.com: https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-xc48-889x-5qmw github.com: https://github.com/FlowiseAI/Flowise/pull/6471 github.com: https://github.com/FlowiseAI/Flowise/commit/a4c4e4988cded15edf725e762560575b889ae351 github.com: https://github.com/FlowiseAI/Flowise/releases/tag/[email protected]