CVE-2026-85172
n8n before 2.34.1 SSRF via Request Helper URI Validation Bypass
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.
INFO
Published Date :
Sept. 3, 2026, 11:22 a.m.
Last Modified :
Sept. 3, 2026, 11:22 a.m.
Remotely Exploit :
Yes !
Source :
VulnCheck
Affected Products
The following products are affected by CVE-2026-85172
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 |
Solution
- Update n8n to version 2.34.1 or later.
- Remove legacy request helper function usage.
- Validate all provided URLs rigorously.
- Restrict access to Function nodes.
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The following list is the news that have been mention
CVE-2026-85172 vulnerability anywhere in the article.