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CVE-2026-32255

8.6 · HIGH

Kan is an open-source project management tool.

Published Mar 19, 2026CWE-918EPSS 1.74%

Overview

CVE-2026-32255 is a high-severity vulnerability. It was published on March 19, 2026 and has a CVSS 3.1 base score of 8.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Kan is an open-source project management tool. In versions 0.5.4 and below, the /api/download/attatchment endpoint has no authentication and no URL validation. The Attachment Download endpoint accepts a user-supplied URL query parameter and passes it directly to fetch() server-side, and returns the full response body. An unauthenticated attacker can use this to make HTTP requests from the server to internal services, cloud metadata endpoints, or private network resources. This issue has been fixed in version 0.5.5. To workaround this issue, block or restrict access to /api/download/attatchment at the reverse proxy level (nginx, Cloudflare, etc.).

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/kanbn/kan/commit/53397d8e81dc1494d94132848c1f0416f1152bd7GitHubgithub.com/kanbn/kan/releases/tag/v0.5.5GitHubgithub.com/kanbn/kan/security/advisories/GHSA-qrx8-9hc6-jvqg

How CyberStrike helps

Frequently asked questions

What is CVE-2026-32255?

CVE-2026-32255 is a high-severity vulnerability. It was published on March 19, 2026 and has a CVSS 3.1 base score of 8.6 (HIGH).

How severe is CVE-2026-32255?

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-32255?

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-2026-32255?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-32255 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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