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.
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History
Fri, 24 Apr 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | 4ga Boards: User Enumeration via Timing Side-Channel in Authentication Endpoint | |
| Weaknesses | CWE-208 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-04-24T19:59:10.069Z
Reserved: 2026-04-20T15:32:33.813Z
Link: CVE-2026-41418
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Status : Received
Published: 2026-04-24T19:17:13.457
Modified: 2026-04-24T19:17:13.457
Link: CVE-2026-41418
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Weaknesses