CVE-2026-82238

Low

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.

SeverityLow

CVSS3.1

Exploit probability—

ProductFilebrowser

PublishedAug 28, 2026

First seenAug 28, 2026

Weakness typeCWE-367CWE-367

How to fix

Vendor advisories

github.com/filebrowser/filebrowser/security/advisories/GHSA-4r8p-gqj2-mwgm

Affected products

Product	Affected versions	Fixed in
filebrowser filebrowser	2.24.0 ≤ v ≤ 2.63.23	—

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