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9.2
CVE-2026-9317: Nango before 0.71.6 lets attackers run code on runner
CVE-2026-9317 · published today
Summary
The Nango service version earlier than 0.71.6 does not check who can start its runner component. Anyone who can reach the runner’s network port can tell it to start and run any JavaScript they choose, potentially taking control of the system. Update Nango to version 0.71.6 or later, or block unauthorized network access to the runner port.
What to do
- Update nangohq nango to version 0.71.6 or later.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| nangohq | nango | < 0.71.6 |
Original advisory text
Nango < 0.71.6 Missing Authentication RCE via runner tRPC server
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.
References
- https://github.com/NangoHQ/nango/pull/7288 issue-tracking patch
- https://github.com/NangoHQ/nango/releases/tag/v0.71.6 release-notes
- https://github.com/NangoHQ/nango/commit/ed3030a9a0f8e4f3810fd10cb3a1905a2f5f87d2 patch
- https://www.vulncheck.com/advisories/nango-missing-authentication-rce-via-runner... third-party-advisory
Severity
9.2
Critical
CVSS 3.1: 8.1 (MITRE)
Type
CWE-306Missing Authentication for Critical Function
Timeline
Published4 Sep 2026
Updated5 Sep 2026
First seen4 Sep 2026
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