Vulnerability · Published Aug 14, 2026 · Assigned by VulnCheck
CVE-2026-72838FileBrowser before 2.63.19 Disk Exhaustion via TUS Upload
Medium 6.5
In plain English
A medium-severity resource allocation without limits in filebrowser from filebrowser. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.5%top 55.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| filebrowser | filebrowser | 0 – before 2.63.19 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- GitHub Security Advisory (GHSA-ffv3-7h97-993q) vendor-advisory
- Patch Commit patch
- VulnCheck Advisory: FileBrowser before 2.63.19 Disk Exhaustion via TUS Upload third-party-advisory