CVE-2026-86073

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.

• CWE-863

• https://github.com/n8n-io/n8n/commit/18458482861097a26f874f30ad7e8136e268475cPatch
• https://github.com/n8n-io/n8n/commit/380788fd9a3264c83161e868026a98731d274d88Patch
• https://github.com/n8n-io/n8n/pull/37122Issue Tracking
• https://github.com/n8n-io/n8n/pull/37588Issue Tracking
• https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7Release Notes
• https://github.com/n8n-io/n8n/releases/tag/n8n@2.38.1Release Notes
• https://github.com/n8n-io/n8n/security/advisories/GHSA-cw9w-vv67-hf73Mitigation, Vendor Advisory

Published

Sep 8, 2026

Last Modified

Sep 11, 2026

Status

Analyzed

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-86063Claude Code is an agentic coding tool. Prior to 2.1.179, the…7.5
• CVE-2026-86064Klever-Go is the Go implementation of the Klever blockchain …8.6
• CVE-2026-86065Klever-Go is the Go implementation of the Klever blockchain …7.5
• CVE-2026-86066Horilla is an HR and CRM software. Prior to 2.0.0, approve_v…5.9
• CVE-2026-8607The Points Management System For Gamification, Ranks, Badges…6.4
• CVE-2026-86071Junrar is an open source Java RAR archive library. Prior to …3.7
• CVE-2026-86074n8n is an open source workflow automation platform. Prior to…7.1
• CVE-2026-86075n8n is an open source workflow automation platform. Prior to…7.5
• CVE-2026-86076n8n is an open source workflow automation platform. Prior to…8.8
• CVE-2026-86077n8n is an open source workflow automation platform. Prior to…6.5
• CVE-2026-86078n8n is an open source workflow automation platform. Prior to…6.5
• CVE-2026-86079n8n is an open source workflow automation platform. Prior to…6.5