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CVE-2026-126385

7.7, high

N8n-io n8n Missing Authentication for Critical Function Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.7, high high CVSS v3.1
EPSS, next 30 days
0.3% higher than 25.6% of scored CVEs
Exploitation
No public evidence
Published
13 Nov 2026yesterday

Description

n8n before 2.45.5, 2.46.x before 2.46.1, and 3.x before 3.0.1 contains a flaw in the OAuth2 credential callback of the dynamic-credential connect flow, which does not verify that the completing browser belongs to the user who started the flow. Members with access to a resolvable OAuth2 credential can send the provider authorization URL to a victim; if the victim consents without an active n8n session, the victim's tokens are stored under the member's identity, letting the member's workflows act as the victim.

Details

Vendor
N8n-io
Product
n8n
Weakness
CWE-306 (opens in a new tab)
Status
Deferred
Updated
13 Nov 2026
Assigner
disclosure@vulncheck.com

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

References 2

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other N8n-io CVEs

Every N8n-io CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-119408 n8n before 2.42.6, 2.43.x before 2.43.3, and 3.x before 3.0.1 contains a remote code execution vulnerability via deprecated Function,… EPSS 0.6% 8.8, high
  • CVE-2026-118641 n8n before 1.123.85, 2.x before 2.43.5, and 2.44.x before 2.44.1 contains an OData $filter injection vulnerability in the Microsoft… EPSS 0.3% 7.5, high
  • CVE-2026-118642 N8n-io n8n Incorrect Authorization Vulnerability EPSS 0.2% 7.1, high
  • CVE-2026-118643 N8n-io n8n Information Exposure Through an Error Message Vulnerability EPSS 0.3% 8.2, high
  • CVE-2026-118644 n8n before 2.41.5 and 2.42.x before 2.42.2 passes a failed workflow's full execution context, including the identity of the user who… EPSS 0.2% 7.7, high
  • CVE-2026-118645 n8n before 1.123.85, 2.x before 2.43.5, and 2.44.x before 2.44.1 contains a filter injection vulnerability in the Quick Base node, which… EPSS 0.2% 8.7, high
  • CVE-2026-118647 N8n-io n8n Insertion of Sensitive Information into Log File Vulnerability EPSS 0.3% 8.2, high
  • CVE-2026-118648 N8n-io n8n Cross-Site Scripting Vulnerability EPSS 0.3% 7.3, high

Beyond this page

Is CVE-2026-126385 in your network?

This page tells you how dangerous CVE-2026-126385 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-126385 comes with the devices to patch.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 14 Nov 2026, not the live upstream state.