Timing Attack Vulnerability in Vendure Open-Source Commerce Platform
CVE-2026-25050

2.7LOW

Key Information:

Vendor

Vendurehq

Status
Vendure
Vendor
CVE Published:
30 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-25050?

The Vendure open-source headless commerce platform has a vulnerability in the NativeAuthenticationStrategy.authenticate() method, which is susceptible to timing attacks. This flaw allows malicious actors to differentiate between valid and invalid usernames by exploiting the timing discrepancies in response times. Specifically, the method provides a quicker response for non-existing accounts (approx. 1-5 ms) compared to existing accounts with bcrypt authentication (around 200-400 ms). This enables attackers to systematically determine valid usernames based on the timing variations. The issue was addressed in version 3.5.3.

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Affected Version(s)

vendure < 3.5.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-25050
Created by Christbowel

References

https://github.com/vendurehq/vendure/security/advisories/...
x_refsource_CONFIRM
https://github.com/vendurehq/vendure/releases/tag/v3.5.3
x_refsource_MISC

CVSS V4

Score:
2.7
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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