CVE-2026-56778

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.

CVSS v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/n8n-io/n8n/security/advisories/GHSA-h3jj-5f3v-3685	Mitigation Vendor Advisory
https://www.vulncheck.com/advisories/n8n-authorization-bypass-in-public-api-execution-retry-endpoint	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:n8n:n8n::::::node.js::*
	cpe:2.3:a:n8n:n8n::::::node.js::*

History

08 Jul 2026, 19:26

Type	Values Removed	Values Added
CPE		cpe:2.3:a:n8n:n8n::::::node.js::*
References	~~() https://github.com/n8n-io/n8n/security/advisories/GHSA-h3jj-5f3v-3685 -~~	() https://github.com/n8n-io/n8n/security/advisories/GHSA-h3jj-5f3v-3685 - Mitigation, Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/n8n-authorization-bypass-in-public-api-execution-retry-endpoint -~~	() https://www.vulncheck.com/advisories/n8n-authorization-bypass-in-public-api-execution-retry-endpoint - Third Party Advisory
First Time		N8n N8n n8n

08 Jul 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-08 14:17

Updated : 2026-07-08 19:26

NVD link : CVE-2026-56778

Mitre link : CVE-2026-56778

CVE.ORG link : CVE-2026-56778

JSON object : View

Products Affected

n8n

n8n

CWE

CWE-863

Incorrect Authorization

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