What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-30 · updated 2026-06-17
• Weakness: CWE-202

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.

Affected products

• vendurehq vendure: before 3.5.3 — fixed in 3.5.3

How to fix

Upgrade to a fixed version: vendurehq vendure 3.5.3. Check the vendor advisory for mitigations.

References

• https://github.com/vendurehq/vendure/releases/tag/v3.5.3
• https://github.com/vendurehq/vendure/security/advisories/GHSA-6f65-4fv2-wwch

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