bug(n8n-node): "Invalid identifier: a value is required" error on Execution Get/Delete operations in v2.39.6

Bug Description

After updating n8n to version 2.39.6, the n8n node (n8n-nodes-base.n8n) fails when attempting to execute Get or Delete operations on a specific execution resource.

Even when entering a valid Execution ID hardcoded into the field manually (without expressions), the node fails to execute and throws the following error: "errorMessage": "Invalid identifier: a value is required".

Note: The Get Many operation works fine without issues. The same GET/DELETE API requests work successfully when tested externally via Postman using the n8n REST API.

Actual behavior

The node fails with the error: NodeOperationError: Invalid identifier: a value is required

Error Stack Trace

{
  "errorMessage": "Invalid identifier: a value is required",
  "errorDetails": {},
  "n8nDetails": {
    "nodeName": "Get an execution",
    "nodeType": "n8n-nodes-base.n8n",
    "nodeVersion": 1,
    "resource": "execution",
    "operation": "get",
    "itemIndex": 0,
    "runIndex": 0,
    "n8nVersion": "2.39.6 (Self Hosted)",
    "stackTrace": [
      "NodeOperationError: Invalid identifier: a value is required",
      "    at RoutingNode.runNode (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file++++home+runner+_work+n8n+n8n+packages+core/node_modules/n8n-core/src/execution-engine/routing-node.ts:278:9)"
    ]
  }
}

To Reproduce

1. Create a workflow in n8n v2.39.6.
2. Add the n8n node (n8n-nodes-base.n8n).
3. Set Resource to Execution.
4. Set Operation to Get (or Delete).
5. Provide a valid Execution ID (either via Expression or plain text/number).
6. Execute the node.

Expected behavior

The node should successfully fetch or delete the specified execution record.

Debug Info

core

• n8nVersion: 2.39.6
• platform: docker (self-hosted)
• nodeJsVersion: 26.7.0
• nodeEnv: production
• database: postgres
• executionMode: regular
• concurrency: -1
• license: enterprise (production)
• consumerId: b8d1ae2a-84c8-4024-9058-b5b891a7105f

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/153.0.0.0 safari/537.36
• isTouchDevice: false

cluster

• instanceCount: 1
• versions: 2.39.6
• instances:
  • instanceKey: e6b56443-b2b1-4221-a93d-9a4588afe19a, hostId: main-ef33fa86f4e3, instanceType: main, instanceRole: leader, version: 2.39.6
• checks:
  • check: hostid-clash, status: succeeded, warnings: -
  • check: lifecycle, status: succeeded, warnings: -
  • check: split-brain, status: succeeded, warnings: -
  • check: version-mismatch, status: succeeded, warnings: -

Generated at: 2026-09-16T17:38:57.178Z

Operating System

Ubuntu 24.04.5 LTS

n8n Version

2.39.6

Node.js Version

26.7.0

Database

PostgreSQL

Execution mode

main (default)

Hosting

self hosted