CVE-2026-86073
CVE-2026-86073 · n8n: Per-Resource OAuth Consent Bypass via Unbound Refresh Token Resource Substitution
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
n8n is an open source workflow automation platform. Prior to 2.37.7 and 2.38.1, the OAuth token endpoint bound an authorization code's first access token to the consented resource but did not bind its refresh token. Refreshing checked only that the requested resource was registered, not that it matched the original grant. An OAuth client approved for one workflow could substitute a different workflow URL in the resource parameter and obtain a valid token for an unapproved workflow accessible to the consenting user. This issue is fixed in versions 2.37.7 and 2.38.1.
CVSS 5.9 · Moyenne · EPSS 0,4% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: node
Produits et versions concernés
Sources originales
- https://github.com/n8n-io/n8n/security/advisories/GHSA-cw9w-vv67-hf73
- https://github.com/n8n-io/n8n/pull/37122
- https://github.com/n8n-io/n8n/pull/37588
- https://github.com/n8n-io/n8n/commit/18458482861097a26f874f30ad7e8136e268475c
- https://github.com/n8n-io/n8n/commit/380788fd9a3264c83161e868026a98731d274d88
- https://github.com/n8n-io/n8n/releases/tag/[email protected]
- https://github.com/n8n-io/n8n/releases/tag/[email protected]
- https://nvd.nist.gov/vuln/detail/CVE-2026-86073