Is CVE-2026-32255 actively exploited?

No active exploitation of CVE-2026-32255 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-32255 be exploited remotely?

Yes. CVE-2026-32255 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-32255?

CVE-2026-32255 has a CVSS score of 8.6 (HIGH).

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HIGH

CVE-2026-32255

CWE-918Published: March 19, 2026· Updated: Mar 19, 2026

8.6

CVSS v3.1

EPSS:0.10%probability of exploitation in 30 daysPercentile:28.1th

Official 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.).

NVD Source

Technical Analysis

CVE-2026-32255 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 8.6.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.