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CVE-2026-118646

CVE-2026-118646 · n8n before 1.123.85, 2.43.5, and 2.44.1 ReDoS via Read/Write Files Node

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

n8n before 1.123.85, 2.43.5, and 2.44.1 contains a regular expression denial of service vulnerability that allows authenticated members to block the event loop via crafted glob patterns. Attackers who can create and run workflows can submit a wildcard-heavy File(s) Selector pattern causing exponential backtracking, making the UI, API, webhooks, and health checks unresponsive until restart.

CVSS 7.1 · High · EPSS 0.2% · Fix available

Published
Updated

Affected products and versions

  • n8n

    Versions
    • ≥ 0, < 1.123.85: Affected (semver)
    • 1.123.85: Not affected (semver)

    Update to 1.123.85

  • n8n

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

    Update to 2.44.1

  • n8n

    Versions
    • ≥ 2.0.0, < 2.43.5: Affected (semver)
    • 2.43.5: Not affected (semver)

    Update to 2.43.5

Original sources

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