CVE-2026-85172

n8n versions before 2.34.1 contain a server-side request forgery vulnerability in the legacy request helper function exposed to Code and Function nodes. The validation logic checks the uri property for SSRF safety while the underlying HTTP client uses the url property when both are present, allowing attackers to bypass validation by supplying a safe uri alongside a malicious url to access internal addresses.

CVSS 4.0

5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

CVSS 3.1

6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 17% of CVEs (scores of 2026-10-29)

CWE

CWE-918

Published

2026-09-03

Modified

2026-10-29

Record from

the NVD, synced 2026-10-29

Affected

• n8n:n8n

References

• https://github.com/n8n-io/n8n/security/advisories/GHSA-jp9j-jr97-w9pj
• https://www.vulncheck.com/advisories/n8n-before-2.34.1-ssrf-via-request-helper-uri-validation-bypass

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