CVE-2026-9317 Nango < 0.71.6 Missing Authentication RCE via runner tRPC server
Unauthenticated attackers can execute arbitrary JavaScript code on the Nango runner server by accessing an exposed tRPC procedure without credentials.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-9317?
CVE-2026-9317 is a critical missing authorization vulnerability in NangoHQ nango, published on 4 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-306
Which versions are affected by CVE-2026-9317?
How do I fix CVE-2026-9317?
No fix has been published for CVE-2026-9317 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-9317 being exploited?
There is no known exploitation of CVE-2026-9317 in the wild and no public exploit code.
Sources
Also known as GHSA-9cph-w8mv-q56r.