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TI-2026-30018 Aliases CVE-2026-41418

4ga Boards: User Enumeration via Timing Side-Channel in Authentication Endpoint

Priority LOW 23CWE-208Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-208.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00197 9th percentileScored 2026-11-07
Fix Fixed 4gaBoards (RARgames): 3.3.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
RARgames4gaBoardsbefore 3.3.53.3.5Patch availableCNA
  • 4gaBoards VendorRARgames Affected before 3.3.5 Fixed in 3.3.5 Patch available CNA

Remediation

  • Fix · CNA 4gaBoards (RARgames) Fixed in 3.3.5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-41418

References

Other 1

  • TI-2026-36945 4gaBoards: Path Traversal leading to Arbitrary File Read and Deletion in Board Export CVSS 3.1HIGH 8.8
  • TI-2026-38925 4gaBoards: SSO Pre-Account Takeover / Hijacking via Mass Assignment CVSS 3.1HIGH 7.6
  • TI-2026-30019 4ga Boards: Import Path Traversal Leads to Arbitrary File Read CVSS 3.1HIGH 7.6
  • TI-2026-38926 4gaBoards: Mass Information Disclosure (Internal PII Leakage) on /api/users to any authenticated user CVSS 3.1MEDIUM 6.5
  • TI-2026-36950 4gaBoards: Pre-Account Takeover via SSO Email Linkage CVSS 3.1HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences