SEPTEMBER 20, 2026
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Case File

CVE-2026-56778

MEDIUM · CVSS 6.4 EPSS 0.17% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-08 · Last synced 2026-08-07

CyberRota Analysis

AI-Generated

The vulnerability allows authenticated users with read-only access to shared workflows in n8n versions prior to 2.25.7 and 2.26.x before 2.26.2 to exploit the Public API execution retry endpoint, enabling them to retry executions without the necessary execute permissions. This poses a risk of unauthorized workflow execution, potentially leading to data exposure or unintended actions within shared environments. Organizations using n8n, particularly those that share workflows across users or projects, should prioritize applying the latest updates to mitigate this risk.

Public Exploit Signal

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

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-56778
Severity
MEDIUM
CVSS
6.4
EPSS
0.17%

Original NVD Description

n8n before 2.25.7 and 2.26.x before 2.26.2 contains an authorization bypass in the Public API execution retry endpoint, which authorizes access using the workflow:read scope instead of workflow:execute. An authenticated user with read-only access to a shared workflow can use the Public API to retry executions of that workflow, bypassing the intended permission boundary between read and execute access. This affects instances where workflows are shared with other users or across projects.

Related CVEs

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