VulnSocial

CVE-2026-86075Disclosure(n8n / n8n)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

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.

n8n CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-770

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • n8n

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
n8n
Products
n8n

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-10: 1Technical Details · 2026-09-10: 109-10
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • DailyCVE@dailycve
    Disclosure

    🔴 n8n, Unauthenticated Persistent Storage Exhaustion via OAuth Dynamic Client Registration Endpoint, #CVE-2026-86075 (High) -DC-Sep2026-2319 https://dailycve.com/n8n-unauthenticated-persistent-storage-exhaustion-via-oauth-dynamic-client-registration-endpoint-cve-2026-86075-high-dc-sep2026-2319/

    Post summary

    The post announces the newly disclosed CVE‑2026‑86075, highlighting its high severity and describing it as an unauthenticated persistent storage exhaustion issue targeting the OAuth Dynamic Client Registration endpoint.

    0000041
    237 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appn8nn8n-node.js-

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