Medium 6.5Published Aug 14, 2026

CVE-2026-72838FileBrowser before 2.63.19 Disk Exhaustion via TUS Upload

Updated under an hour ago (2026-10-19 08:30 UTC)

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It affects filebrowser. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

filebrowser filebrowser filebrowser:filebrowser (from the name)	before 2.63.19; 2.63.19 not affected	CNA record

References

https://github.com/filebrowser/filebrowser/security/advisories/GHSA-ffv3-7h97-993qvendor-advisory
https://github.com/filebrowser/filebrowser/commit/4daddec6f200b03a721197d8c0b4b652c994894epatch
https://www.vulncheck.com/advisories/filebrowser-before-disk-exhaustion-via-tus-uploadthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.