---
title: "CVE-2026-63472: Vendure affected by external-authentication account takeover: external login linked to a pre-existing account by email without verification"
url: https://erroneo.us/security/cve/CVE-2026-63472/
description: "CVE-2026-63472 (@vendure/core (npm)): Vendure is an open-source headless commerce platform. Prior to 3.7.0…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-09-17
date_modified: 2026-09-17
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-63472"
kev: false
cvss: 9.1
epss: 0.00589
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-63472: Vendure affected by external-authentication account takeover: external login linked to a pre-existing account by email without verification

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.6% , percentile 47: FIRST’s model estimates a 0.6% chance of exploitation activity in the next 30 days, higher than 47% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes @vendure/core (npm) < 3.7.0, fixed in 3.7.0 . Check your lockfile, including transitive dependencies.

## What it is

Vendure is an open-source headless commerce platform. Prior to 3.7.0, ExternalAuthenticationService.createCustomerAndUser in packages/core/src/service/helpers/external-authentication/external-authentication.service.ts selects an existing customer user by emailAddress and attaches a newly presented ExternalAuthenticationMethod without requiring verified to be true. In deployments with a custom external AuthenticationStrategy that forwards an email whose ownership the provider has not verified, an attacker can authenticate with a victim's email and bind the attacker's external identity to the victim's existing account. This can expose orders, addresses, and personal information and permit account changes or orders as the victim. Native-only email and password deployments and external strategies that always require provider-verified email ownership are unaffected, and new-account creation for an unused email remains permitted. This issue is fixed in version 3.7.0.

## Affected packages

- npm `@vendure/core` < 3.7.0 → fixed: 3.7.0

## Affected products (CVE record)

- vendurehq vendure: < 3.7.0

## Severity

- GitHub_M CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`
- GitHub CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.59% probability of exploitation activity in the next 30 days; percentile 47.

## Sources

- [GitHub Advisory GHSA-6j36-r6pr-59x4](https://github.com/advisories/GHSA-6j36-r6pr-59x4)
- [CVE.org record CVE-2026-63472](https://www.cve.org/CVERecord?id=CVE-2026-63472)
- [NVD entry CVE-2026-63472](https://nvd.nist.gov/vuln/detail/CVE-2026-63472)
- [github.com](https://github.com/vendurehq/vendure/security/advisories/GHSA-6j36-r6pr-59x4)
- [github.com](https://github.com/vendurehq/vendure/commit/3bb04718ea4f9395fda731bd2a4bcfc3afb0a485)
- [github.com](https://github.com/vendurehq/vendure/releases/tag/v3.7.0)

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Source page: https://erroneo.us/security/cve/CVE-2026-63472/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt