High severity · published Jul 22, 2026
CVE-2026-65596
n8n before 1.123.64 Credential Exfiltration via GraphQL Node
8.1
CVSS
0.4%
EPSS
No
On KEV
Description
n8n before 1.123.64, 2.29.8, and 2.30.1 fails to enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials (Header Auth, Basic Auth, Query Auth, OAuth) in the GraphQL node, unlike the HTTP Request node. An authenticated user able to create or edit workflows can point the node's endpoint at a server they control and exfiltrate restricted credentials. Only instances where a credential has "Allowed HTTP Request Domains" configured and is usable by non-owner users are affected.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N8
n8n · n8n-io
before 1.123.64; before 2.30.1; before 2.29.8 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-65596
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-65596
Mitigation
https://github.com/n8n-io/n8n/security/advisories/GHSA-gq66-9cw5-j5jm
Third Party Advisory
https://www.vulncheck.com/advisories/n8n-before-credential-exfiltration-via-graphql-node
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