CVE-2026-72771 json
n8n before 2.32.1 Credential Restriction Bypass via AI/LLM Nodes
published 2026-07-22 3 mo ago modified 2026-10-29 10 d ago also GHSA-64xh-79j6-r5v8 , EUVD-2026-56097
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
n8n versions before 2.32.1 fail to enforce the Allowed HTTP Request Domains allowlist in multiple AI and LLM nodes when user-supplied base or endpoint URLs are configured. Low-privileged workflow editors with use-only access to shared credentials can redirect requests to attacker-controlled hosts and exfiltrate credential secrets for reuse against underlying services.
Patch / fix
- npm n8n 2.31.5, 2.32.1
- n8n-io n8n 2.31.5, 2.32.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | n8n | >=2.32.0, <2.32.1 <2.31.5 |
2.32.1 2.31.5 |
Affected products
- n8n-io n8n
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/n8n-io/n8n/commit/f69dfc6dd2178a14ea1624d2e1d403c2e755042f
web
-
github.com
/n8n-io/n8n/security/advisories/GHSA-64xh-79j6-r5v8
vendor-advisory, web, mitigation
-
vulncheck.com
/advisories/n8n-before-credential-restriction-bypass-via-ai-llm-nodes
third-party-advisory
-
github.com
/n8n-io/n8n
package
-
github.com
/n8n-io/n8n/releases/tag/n8n@2.31.5
web
-
github.com
/n8n-io/n8n/releases/tag/n8n@2.32.1
web
Sources
- CVE List CVE-2026-72771
- GitHub Advisory GHSA-64xh-79j6-r5v8
- NVD CVE-2026-72771
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