Vulnerability 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.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-4r8p-gqj2-mw
- https://www.vulncheck.com/advisories/filebrowser-2.24.0-race-condition-via-tus-c
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-4r8p-gqj2-mw
FAQ
What is CVE-2026-82238?
CVE-2026-82238 is a vulnerability with a CVSS score of 3.1 (LOW). 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. Attac...
How severe is CVE-2026-82238?
CVE-2026-82238 has been rated LOW with a CVSS base score of 3.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-82238?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.