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CVE-2026-86994

CVE-2026-86994 · n8n: Cross-User Active Workflow ID and Lifecycle Event Disclosure via Missing userId Filter

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

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the /rest/active-workflows endpoint returned every active workflow ID on the instance to any member regardless of sharing. Workflow activation, deactivation, and publication push events were also broadcast to clients that could not access the affected workflow, disclosing workflow IDs, version IDs, and activation error details. The affected paths include packages/cli/src/services/active-workflows.service.ts and packages/cli/src/workflows/workflow-push-notifier.service.ts. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.

CVSS 5.3 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • n8n

    Versions
    • >= 2.38.0, < 2.38.2: Affected
    • >= 2.0.0, < 2.37.7: Affected
    • < 1.123.76: Affected

    No fix published

  • n8n npm

    Affected ranges
    • SEMVER: < 1.123.76

    Update to 1.123.76

  • n8n npm

    Affected ranges
    • SEMVER: ≥ 2.38.0, < 2.38.2

    Update to 2.38.2

  • n8n npm

    Affected ranges
    • SEMVER: ≥ 2.0.0, < 2.37.7

    Update to 2.37.7

Original sources

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