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CVE-2026-25050— Vendure vulnerable to timing attack that enables user enumeration in NativeAuthenticationStrategy

Quick assessment

Affected
vendurehq vendure
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vendure是Vendure开源的一个电子商务框架。 Vendure 3.5.3之前版本存在安全漏洞，该漏洞源于NativeAuthenticationStrategy.authenticate方法存在时间差，可能导致用户名枚举攻击。

AI Predicted 7.5 Difficulty: Easy EPSS 0.41% · P33
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I. Basic Information for CVE-2026-25050

Vulnerability Information
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Vulnerability Title
Vendure vulnerable to timing attack that enables user enumeration in NativeAuthenticationStrategy
Source: CVE Program / CVE List V5
Vulnerability Description
Vendure is an open-source headless commerce platform. Prior to version 3.5.3, the `NativeAuthenticationStrategy.authenticate()` method is vulnerable to a timing attack that allows attackers to enumerate valid usernames (email addresses). In `packages/core/src/config/auth/native-authentication-strategy.ts`, the authenticate method returns immediately if a user is not found. The significant timing difference (~200-400ms for bcrypt vs ~1-5ms for DB miss) allows attackers to reliably distinguish between existing and non-existing accounts. Version 3.5.3 fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
通过数据查询的敏感数据暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Vendure 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vendure是Vendure开源的一个电子商务框架。 Vendure 3.5.3之前版本存在安全漏洞，该漏洞源于NativeAuthenticationStrategy.authenticate方法存在时间差，可能导致用户名枚举攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
vendurehq vendure < 3.5.3 -

II. Public POCs for CVE-2026-25050

# POC Description Source Link Shenlong Link
1 CVE-2026-25050 – Timing attack PoC enabling user enumeration via GraphQL authentication https://github.com/Christbowel/CVE-2026-25050 POC Details
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III. Intelligence Information for CVE-2026-25050

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Vendor Advisories for CVE-2026-25050 (1)

IV. Related Vulnerabilities

Same product: vendure
Same vendor: vendurehq
Same weakness: CWE-202

V. Comments for CVE-2026-25050

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