n8n: Unauthenticated Persistent Storage Exhaustion via OAuth Dynamic Client Registration Endpoint
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
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| n8n-io | n8n | affected |
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Configuration 1 [-]
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No data.
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| N8n | N8n |
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| Source | ID | Title |
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Github GHSA |
GHSA-hh89-3r9w-qj3j | n8n: Unauthenticated Persistent Storage Exhaustion via OAuth Dynamic Client Registration Endpoint |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.609% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
N8n
N8n n8n |
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| CPEs | cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* | |
| Vendors & Products |
N8n
N8n n8n |
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| Metrics |
cvssV3_1
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| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| 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. | |
| Title | n8n: Unauthenticated Persistent Storage Exhaustion via OAuth Dynamic Client Registration Endpoint | |
| Weaknesses | CWE-770 | |
| References |
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| Metrics |
cvssV4_0
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