CyberRota Analysis
AI-GeneratedThe OAuth Dynamic Client Registration endpoint in n8n versions prior to 2.37.7 and 2.38.2 is vulnerable to an attack that allows unauthenticated remote callers to persist excessively large values for client_name and grant_types, potentially exhausting database storage. This could lead to service disruptions and degraded performance for users. Organizations using affected versions of n8n should prioritize upgrading to the patched versions to mitigate this high-severity vulnerability.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
n8n is an open source workflow automation platform. Prior to 2.37.7 and 2.38.2, the OAuth Dynamic Client Registration endpoint bounded redirect_uris but accepted arbitrarily large client_name and grant_types values. An unauthenticated remote caller could repeatedly persist oversized values in oauth_clients and exhaust database storage. The affected validation is in packages/cli/src/modules/oauth-server/oauth-server.service.ts, including MAX_CLIENT_NAME_LENGTH and MAX_GRANT_TYPES. This issue is fixed in versions 2.37.7 and 2.38.2.
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