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CVE-2026-88940

5.3 · MEDIUM

knowns through 0.33.0 fails to validate the path query parameter in the workspace browse endpoint, allowing remote attackers to enumerate arbitrary directories on the host filesystem.

Published Sep 10, 2026CWE-22EPSS 0.56%

Overview

CVE-2026-88940 is a medium-severity vulnerability. It was published on September 10, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

knowns through 0.33.0 fails to validate the path query parameter in the workspace browse endpoint, allowing remote attackers to enumerate arbitrary directories on the host filesystem. Attackers can traverse the directory structure to locate project directories and identify targets for further exploitation.

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/knowns-dev/knowns/blob/v0.33.0/internal/server/routes/workspace.go#L42-L110GitHubgithub.com/knowns-dev/knowns/security/advisories/GHSA-h73x-698r-qrvgRefwww.vulncheck.com/advisories/knowns-through-0.33.0-arbitrary-directory-enumeration-via-workspace-browse-endpointGitHubgithub.com/knowns-dev/knowns/security/advisories/GHSA-h73x-698r-qrvg

How CyberStrike helps

Frequently asked questions

What is CVE-2026-88940?

CVE-2026-88940 is a medium-severity vulnerability. It was published on September 10, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-88940?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-88940?

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-2026-88940?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-88940 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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