p PatchFirst

CVE-2026-56359

CVE-2026-56359 · n8n - Cross-Site Scripting in Credential Management OAuth2 Authorization URL

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

n8n before 2.8.0 contains a cross-site scripting vulnerability in the credential management flow where authenticated users can inject malicious JavaScript URLs into OAuth2 credential Authorization URL fields. Attackers can craft malicious credentials and trick victims into clicking the OAuth authorization button, executing arbitrary scripts in their browser session with the victim's privileges.

CVSS 4.8 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • n8n

    Versions
    • ≥ 0, < 2.8.0: Affected (semver)
    • 2.8.0: Not affected (semver)

    Update to 2.8.0

  • n8n

    Versions
    • ≥ 0, < 2.6.4: Affected (semver)
    • 2.6.4: Not affected (semver)

    Update to 2.6.4

  • n8n npm

    Affected ranges
    • SEMVER: ≥ 2.7.0, < 2.8.0

    Update to 2.8.0

  • n8n npm

    Affected ranges
    • SEMVER: < 2.6.4

    Update to 2.6.4

Original sources

Check your server →