Missing Authorization Affecting n8n package, versions <2.37.7-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.25% (17th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-N8N-19688503
  • published12 Sept 2026
  • disclosed8 Sept 2026

Introduced: 8 Sep 2026

NewCVE-2026-86077  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

Upgrade Minimos:latest n8n to version 2.37.7-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream n8n package and not the n8n package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

n8n is an open source workflow automation platform. Prior to 2.37.7 and 2.38.2, the /chat WebSocket route accepted a resumeToken and resumed a paused execution without checking that the target node supported chat messages. An anonymous form submitter who received that token could reuse it on the chat route to release a Send-and-Wait, non-chat HITL, or Wait approval gate. The affected authorization logic is packages/cli/src/chat/chat-execution-manager.ts, where canResumeOverChat did not gate the resume target. This issue is fixed in versions 2.37.7 and 2.38.2.

CVSS Base Scores

version 3.1