High severity8.1NVD Advisory· Published Sep 4, 2026

CVE-2026-9317

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.

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Affected products

NangoHQ/nangollm-create
Range: <0.71.6

Patches

Vulnerability mechanics

References

github.com/NangoHQ/nango/commit/ed3030a9a0f8e4f3810fd10cb3a1905a2f5f87d2nvd
github.com/NangoHQ/nango/pull/7288nvd
github.com/NangoHQ/nango/releases/tag/v0.71.6nvd
www.vulncheck.com/advisories/nango-missing-authentication-rce-via-runner-trpc-servernvd

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cvss	0.526
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000