Vulnerability library
Security checkAugust 04, 2026

Flowise: CVE-2025-8943 Patch Bypass: npm_config_yes bypasses MCP environment variable blocklist (Unauthenticated RCE)

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Description

The mitigation shipped for CVE-2025-8943 blocks the -y and --yes flags on npx to stop auto-installation of arbitrary packages. That flag filter works. The environment-variable check in the same patch denies only four variable names by exact string match, and npm reads its configuration directly from npm_config_* environment variables.

Recommendation

Update the flowise-components package to the latest compatible version. Followings are version details:

  • Affected version(s): <= 3.1.2
  • Patched version(s): 3.1.3

References

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Related Issues

See something that needs correcting? Let us knowUpdated August 04, 2026