Bug Description

Describe the bug

When using the HTTP Request node with Predefined Credential Type (e.g. Brevo API,
WordPress API, WooCommerce API), the execution log shows a warning icon indicating
that credentials are not set — even though:

• The credentials are correctly configured and selected in the node
• The execution completes successfully (the authenticated action is performed)
• The same behavior is reproducible across multiple services

This creates a persistent false positive in the execution panel, making it
impossible to distinguish real credential errors from this spurious warning.

Actual behavior

A "credentials not set" warning is shown on every HTTP Request node using
Predefined Credential Type, regardless of whether credentials are actually set.

Environment

• n8n version: 2.13.2
• Running via: Docker (self-hosted)
• Database: (default)
• Affected services: Brevo, WordPress, WooCommerce (reproduced across multiple services)

Additional context

The issue appears to be a display/logging bug in how n8n records credential
references for the generic HTTP node — the execution result is correct,
but the credential reference is not being properly logged for this auth type.

Community thread with screenshots and discussion:
https://community.n8n.io/t/warning-about-credentials-not-set-using-http-node-although-the-node-is-working-and-credentials-are-set/278467

To Reproduce

1. Create an HTTP Request node
2. Set Authentication → Predefined Credential Type
3. Select any credential (e.g. Brevo, WordPress, WooCommerce)
4. Execute the workflow successfully
5. Open the execution log → warning icon appears on the node with message
   suggesting credentials are not set

Expected behavior

No warning should appear when credentials are correctly set and the execution
succeeds. The warning should only appear when credentials are genuinely missing
or invalid.

Debug Info

Debug info

core

• n8nVersion: 2.13.2
• platform: docker (self-hosted)
• nodeJsVersion: 24.13.1
• nodeEnv: production
• database: postgres
• executionMode: regular
• concurrency: -1
• license: enterprise (production)
• consumerId: 8c218067-ae71-43d0-b12a-13c5cda8bd76

storage

• success: all
• error: all
• progress: false
• manual: true
• binaryMode: filesystem

pruning

• enabled: true
• maxAge: 336 hours
• maxCount: 10000 executions

client

• userAgent: mozilla/5.0 (macintosh; intel mac os x 10_15_7) applewebkit/537.36 (khtml, like gecko) chrome/146.0.0.0 safari/537.36
• isTouchDevice: false

security

• secureCookie: false

Generated at: 2026-03-24T17:07:03.482Z

Operating System

Ubuntu Linux 22.04

n8n Version

2.13.2

Node.js Version

24.13.1

Database

PostgreSQL

Execution mode

main (default)

Hosting

self hosted