Vulnerability · Published Aug 28, 2026 · Assigned by VulnCheck

CVE-2026-82238filebrowser 2.24.0 Race Condition via TUS concurrent PATCH uploads

Low 3.1

In plain English

A low-severity security flaw in filebrowser from filebrowser. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).

Severity (CVSS 3.1)3.1Low

Exploit odds (30 days)0.2%top 88.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
filebrowser	filebrowser	2.24.0 – through 2.63.23

Weakness: CWE-367 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

References

GitHub Security Advisory (GHSA-4r8p-gqj2-mwgm) vendor-advisory
VulnCheck Advisory: filebrowser 2.24.0 Race Condition via TUS concurrent PATCH uploads third-party-advisory