Is arcade-mcp-server affected by CVE-2025-66454?

PyPI arcade-mcp-server is affected in <1.9.1.

Is CVE-2025-66454 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

medium

CVE-2025-66454

Q: Is CVE-2025-66454 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

PyPI · arcade-mcp-server

Summary

arcade-mcp-server Has Default Hardcoded Worker Secret That Allows Full Unauthorized Access to All HTTP MCP Worker Endpoints

Severity: medium
EPSS: 0.3% (p18)
Also known as: GHSA-g2jx-37x6-6438
Published: 2025-12-02

References

https://github.com/ArcadeAI/arcade-mcp/security/advisories/GHSA-g2jx-37x6-6438
https://nvd.nist.gov/vuln/detail/CVE-2025-66454
https://github.com/ArcadeAI/arcade-mcp/pull/691

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.