CVE-2026-85172

n8n before 2.34.1 SSRF via Request Helper URI Validation Bypass

MEDIUM
6.4
CVSS Score
Published: September 3, 2026 at 11:22 AM UTC
Updated: September 16, 2026 at 09:44 PM UTC
2 products affected across 2 vendorsN8NN8N

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Severity
MEDIUM6.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

95%
v < 2.33.4v < 2.34.12.34.0
Affected range stops below 2.33.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.34.1, so it looks safe — our inference, not a vendor statement
v < 2.33.4v < 2.34.1
Vendor states this is fixed in 2.33.4 (unaffected)
Vendor states this is fixed in 2.34.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-918

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