SEPTEMBER 17, 2026
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Case File

CVE-2026-86077

MEDIUM · CVSS 6.5 EPSS 0.25% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-08 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

The vulnerability in n8n allows an attacker with access to a resumeToken to exploit the /chat WebSocket route, potentially resuming paused executions without proper authorization checks. This could lead to unauthorized execution of non-chat tasks, impacting workflow integrity and security. Organizations using n8n versions prior to 2.37.7 and 2.38.2 should prioritize updating to mitigate the risk of unauthorized access and execution.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-86077
Severity
MEDIUM
CVSS
6.5
EPSS
0.25%

Original NVD Description

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.

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