Vulnerability Description
Nango before 0.71.6 contains a missing authentication vulnerability in the runner tRPC server that allows unauthenticated attackers to execute arbitrary JavaScript code by invoking the exposed start procedure without credentials. Attackers with network access to the runner port can send requests to the unauthenticated start procedure, bypassing the unenforced RUNNER_SECRET_KEY environment variable, to achieve remote code execution within the runner process.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/NangoHQ/nango/commit/ed3030a9a0f8e4f3810fd10cb3a1905a2f5f87d2
- https://github.com/NangoHQ/nango/pull/7288
- https://github.com/NangoHQ/nango/releases/tag/v0.71.6
- https://www.vulncheck.com/advisories/nango-missing-authentication-rce-via-runner
FAQ
What is CVE-2026-9317?
CVE-2026-9317 is a vulnerability with a CVSS score of 8.1 (HIGH). Nango before 0.71.6 contains a missing authentication vulnerability in the runner tRPC server that allows unauthenticated attackers to execute arbitrary JavaScript code by invoking the exposed start p...
How severe is CVE-2026-9317?
CVE-2026-9317 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-9317?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.