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CVE-2026-25051

CVE-2026-25051 · n8n Improper CSP Enforcement in Webhook Responses May Allow Stored XSS

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

n8n is an open source workflow automation platform. Prior to version 1.123.2, a Cross-Site Scripting (XSS) vulnerability has been identified in the handling of webhook responses and related HTTP endpoints. Under certain conditions, the Content Security Policy (CSP) sandbox protection intended to isolate HTML responses may not be applied correctly. An authenticated user with permission to create or modify workflows could abuse this to execute malicious scripts with same-origin privileges when other users interact with the crafted workflow. This could lead to session hijacking and account takeover. This issue has been patched in version 1.123.2.

CVSS 8.5 · High · EPSS 0.3% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • n8n

    Versions
    • < 1.123.2: Affected

    No fix published

  • n8n npm

    Affected ranges
    • SEMVER: ≥ 1.123.0, < 1.123.2

    Update to 1.123.2

  • n8n npm

    Affected ranges
    • SEMVER: < 1.122.5

    Update to 1.122.5

Original sources

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