High severity · published Oct 28, 2026
CVE-2026-118676
n8n before 1.123.85, 2.43.5, and 2.44.1 Credential Permission Check Bypass
New
7.1
CVSS
–
EPSS
No
On KEV
Description
n8n before 1.123.85, 2.43.5, and 2.44.1 contains an authorization bypass vulnerability that allows member users to use credentials they cannot access by omitting default node parameters. Attackers can save and run workflows where pre-execution checks skip credential slots, causing decrypted credential values to be sent to attacker-chosen destinations.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N8
n8n · n8n-io
before 1.123.85; 2.44.0 before 2.44.1; 2.0.0 before 2.43.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-118676
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-118676
vendor-advisory
https://github.com/n8n-io/n8n/security/advisories/GHSA-v9cx-v88r-42vw
third-party-advisory
https://www.vulncheck.com/advisories/n8n-before-1.123.85-2.43.5-and-2.44.1-credential-permission-check-bypass
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