CVE-2026-41418: Rargames 4gaboards

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

4ga Boards is a boards system for realtime project management. Prior to 3.3.5, 4ga Boards is vulnerable to user enumeration via a timing side-channel in the login endpoint (POST /api/access-tokens). When an invalid username/email is provided, the server responds immediately (~17ms average). When a valid username/email is provided with an incorrect password, the server first performs a bcrypt.compareSync() operation (~74ms average) before responding. This ~4.4× timing difference is trivially detectable even over a network — a single request suffices. This vulnerability is fixed in 3.3.5.

Affected products

• Rargames 4gaboards: before 3.3.5 (fixed in 3.3.5)

Published 2026-04-24. Last modified 2026-06-17.