p PatchFirst

CVE-2026-118649

CVE-2026-118649 · n8n before 2.43.5 and 2.44.1 Authorization Bypass via Crafted Workflow ID in Data Tables

This page contains facts from public vulnerability sources. Check the original advisory before updating.

n8n before 2.43.5 and 2.44.x before 2.44.1 accepts a client-supplied workflow ID and caches each workflow's owner project in memory by that ID, so a crafted ID such as __proto__ makes the Data Table project check match every project. An authenticated member who can create and run workflows can list, read, modify, and delete Data Table rows in all projects of the instance.

CVSS 8.7 · High · EPSS 0.3% · Fix available

Published
Updated

Affected products and versions

  • n8n

    Versions
    • ≥ 2.44.0, < 2.44.1: Affected (semver)
    • 2.44.1: Not affected (semver)

    Update to 2.44.1

  • n8n

    Versions
    • ≥ 0, < 2.43.5: Affected (semver)
    • 2.43.5: Not affected (semver)

    Update to 2.43.5

Original sources

Check your server →