CVE-2026-82238

filebrowser 2.24.0 Race Condition via TUS concurrent PATCH uploads

Published Aug 28, 2026 CVSS 4.0 · 2.3 Low EPSS < 1% KEV · Not listed
Description
filebrowser from version 2.24.0 contains a race condition in the TUS upload handler that allows authenticated users to write past the declared Upload-Length by sending concurrent PATCH requests. Attackers can send multiple simultaneous PATCH requests at the same offset to bypass length validation, resulting in files that exceed their declared size and triggering completion hooks for oversized uploads.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description filebrowser from version 2.24.0 contains a race condition in the TUS upload handler that allows authenticated users to write past the declared Upload-Length by sending concurrent PATCH requests. Attackers can send multiple simultaneous PATCH requests at the same offset to bypass length validation, resulting in files that exceed their declared size and triggering completion hooks for oversized uploads.
Title filebrowser 2.24.0 Race Condition via TUS concurrent PATCH uploads
First Time appeared Filebrowser
Filebrowser filebrowser
Weaknesses CWE-367
CPEs cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*
Vendors & Products Filebrowser
Filebrowser filebrowser
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 30, 2026, 5:20 PM
Reserved
Aug 28, 2026, 10:37 AM
Status
Awaiting Analysis
Published
Aug 28, 2026, 12:16 PM
Modified
Sep 30, 2026, 6:18 PM