What’s Vulnerable › Vulnerabilities

CVE-2026-59209: n8n: Shared Credential Header Leak via HTTP Request Pagination Expression

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-09 · updated 2026-10-25
• Weakness: CWE-200

Description

n8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated member with use-only editor access to a shared workflow could read credential-populated headers exposed via the $request object inside an HTTP Request node's pagination expression and exfiltrate the secret through item data. This issue is fixed in versions 1.123.61, 2.27.4, and 2.28.1.

Affected products

• n8n-io n8n: before 1.123.61; from 2.0.0 before 2.27.4; 2.28.0 — fixed in 1.123.61, 2.27.4

How to fix

Upgrade to a fixed version: n8n-io n8n 1.123.61, 2.27.4. Check the vendor advisory for mitigations.

References

• https://github.com/n8n-io/n8n/releases/tag/n8n%402.27.4
• https://github.com/n8n-io/n8n/releases/tag/n8n%402.28.1
• https://github.com/n8n-io/n8n/security/advisories/GHSA-q3j5-8vrg-4p9q

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