CVE-2026-103246

Published: Ott 01, 2026 Last Modified: Ott 01, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 7,7
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: none
Availability: none

Description

AI Translation Available

n8n versions before 2.39.6 and 2.40.0 before 2.40.1 fail to validate credential ownership during inline agent node-tool introspection. Attackers can reference arbitrary credential IDs to decrypt and exfiltrate plaintext secrets to attacker-controlled hosts without ownership verification.

639

Authorization Bypass Through User-Controlled Key

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Bypass Protection Mechanism Gain Privileges Or Assume Identity
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: High
View CWE Details
https://github.com/n8n-io/n8n/security/advisories/GHSA-9rhv…
https://github.com/n8n-io/n8n/security/advisories/GHSA-9rhv-fhr8-7q5r
https://www.vulncheck.com/advisories/n8n-before-2.39.6-and-…
https://www.vulncheck.com/advisories/n8n-before-2.39.6-and-2.40-x-before-2.40.1…