CVE-2026-65596: n8n authorization bypass in GraphQL node allows credential exfiltration

CVE-2026-65596 · Severity: medium · CVSS 4 · Published 2026-07-22

n8n is a workflow automation tool used to connect different software services. A security flaw in its GraphQL component allows authorized users to bypass security restrictions that normally limit which websites can receive sensitive login information. An attacker with access to create or edit workflows could use this to send company credentials to a server they control, potentially leading to unauthorized access to other business accounts.

Technologies: N8n, n8n (npm). Vendors: N8n, npm.

Quick answers

Is CVE-2026-65596 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-65596 being exploited in the wild.
How severe is CVE-2026-65596?
Medium severity, with a CVSS score of 4, published 22 July 2026.
Which products and versions are affected?
N8n < 1.123.64, < 2.29.8, < 2.30.1, < 1.123.64, >= 2.0.0 < 2.29.8, >= 2.30.0 < 2.30.1; n8n (npm) SEMVER:introduced=0,fixed=1.123.64.
Is there a fix for CVE-2026-65596?
Yes. n8n (npm): upgrade to 1.123.64 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-65596 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-65596?
Check whether you run N8n or n8n (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • n8n (npm): upgrade to 1.123.64 or later
    npm install n8n@1.123.64

Technical details

An incorrect authorization vulnerability (CWE-863) exists in n8n where the GraphQL node does not enforce the 'Allowed HTTP Request Domains' restriction. While the standard HTTP Request node respects these boundaries, the GraphQL node allows HTTP-based credentials (including Basic Auth, Header Auth, and OAuth) to be sent to any arbitrary domain. An authenticated attacker with workflow creation or editing privileges can configure a GraphQL node to point to a malicious endpoint, thereby exfiltrating shared credentials. The vulnerability is patched in versions 1.123.64, 2.29.8, and 2.30.1.

Affected products

  • n8n-io n8n < 1.123.64, >= 2.0.0 < 2.29.8, >= 2.30.0 < 2.30.1

Identifiers

  • CVE-2026-65596
  • GHSA-gq66-9cw5-j5jm

Timeline

  • 2026-07-08: disclosed
  • 2026-07-22: advisory

References

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