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CVE-2026-50186

8.8 · HIGH

4gaBoards is a boards system for realtime project management.

Published Aug 18, 2026CWE-22EPSS 0.59%

Overview

CVE-2026-50186 is a high-severity vulnerability. It was published on August 18, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

4gaBoards is a boards system for realtime project management. Prior to 3.3.8, 4gaBoards allows an authenticated project manager to supply traversal sequences in the filename parameter of GET /exports/:id/:filename. In server/api/controllers/boards/download.js, the decoded inputs.filename value is passed to path.join() beneath private/exports/<user_id>/ without containment validation. A crafted value such as ../ can select an arbitrary file readable by the server process, and the file is returned to the attacker. The fileStream close handler then passes the same path to fs.unlink(), deleting the selected file and potentially causing data loss or denial of service. This issue is fixed in version 3.3.8.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/RARgames/4gaBoards/commit/654151d7cc7739e43fd32d368e47bc4090cc65f5GitHubgithub.com/RARgames/4gaBoards/releases/tag/v3.3.8GitHubgithub.com/RARgames/4gaBoards/security/advisories/GHSA-rv7w-hhqv-65cfGitHubgithub.com/RARgames/4gaBoards/security/advisories/GHSA-rv7w-hhqv-65cf

How CyberStrike helps

Frequently asked questions

What is CVE-2026-50186?

CVE-2026-50186 is a high-severity vulnerability. It was published on August 18, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-50186?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-50186?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-50186?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-50186 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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