CVE-2026-82238

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.

CVSS v3 3.1 LOW

3.1^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.6 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-4r8p-gqj2-mwgm
https://www.vulncheck.com/advisories/filebrowser-2.24.0-race-condition-via-tus-concurrent-patch-uploads
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-4r8p-gqj2-mwgm

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-28 12:16

Updated : 2026-08-31 19:17

NVD link : CVE-2026-82238

Mitre link : CVE-2026-82238

CVE.ORG link : CVE-2026-82238

JSON object : View

Products Affected

No product.

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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