Vulnerability details
CVE-2026-72763
n8n-io n8n
n8n before 1.123.67 Credential Exfiltration via Sub-Workflow
CVSS 4.0
7.2High
Official description
n8n before 1.123.67, 2.31.5, and 2.32.1 validates credential-access only for a node's top-level credentials and not for credentials referenced inside an Execute Sub-workflow node's inline workflow JSON. A member with Editor access to a shared workflow (when workflow sharing is enabled) who knows a target credential's ID can reference that credential in the inline JSON; it passes save-time and runtime validation and resolves in the parent workflow's project context, allowing the attacker to use or exfiltrate credentials they are not permitted to access.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.2High | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:L |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| n8n-io | n8n | v < 1.123.67 | CVEProject cvelistV5 (CNA) |
| n8n-io | n8n | 2.0.0-rc.0 ≤ v < 2.31.5 | CVEProject cvelistV5 (CNA) |
| n8n-io | n8n | 2.32.0 ≤ v < 2.32.1 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-08-11
- Last updated
- 2026-10-30
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.35%
Probability of exploitation in 30 days
29.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-639Authorization Bypass Through User-Controlled Key