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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| filebrowser | filebrowser | 2.24.0 – ≤ 2.63.23 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | filebrowser +1 | No fix yet | — |
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