CVE-2026-126390

EUVD-2026-125175
n8n before 1.123.89 contains a credential leakage vulnerability in the NocoDB node that sends the configured NocoDB API token to attacker-chosen hosts when downloading attachments. Attackers with write access to a NocoDB attachment cell can insert a URL to their host, capturing the API token when the workflow executes with Download Attachments enabled.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
3.7 LOW
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 23.06%
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://github.com/n8n-io/n8n/security/advisories/GHSA-jmcg-c7p5-q69g
https://www.vulncheck.com/advisories/n8n-before-1.123.89-nocodb-node-api-token-leak-via-attachment-download