Title:Vendure vulnerable to timing attack that enables user enumeration in NativeAuthenticationStrategy (CVE-2026-25050) 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.
Description
CVE-2026-25050 – Timing attack PoC enabling user enumeration via GraphQL authentication
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