Is CVE-2026-72838 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-72838?

CVE-2026-72838 has a CVSS v3 severity of MEDIUM (6.5).

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CVE-2026-72838

Description

FileBrowser versions before 2.63.19 fail to enforce the declared Upload-Length in the TUS resumable-upload PATCH endpoint, allowing authenticated users to write arbitrary data to disk. Attackers can send oversized request bodies that exceed the declared upload length to exhaust available disk space and cause service unavailability.