File Browser TUS Negative Upload-Length Fires Post-Upload Hooks Prematurely
Published Mar 19, 2026 · Updated Oct 23, 2026 · Also known as GHSA-ffx7-75gc-jg7c, GO-2026-4713
Original summary
Normalized public record · Updated Oct 23, 2026
File Browser TUS Negative Upload-Length Fires Post-Upload Hooks Prematurely
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
> [!NOTE] > **This feature has been disabled by default for all installations from v2.33.8 onwards, including for existent installations**. To exploit this vulnerability, the instance administrator must turn on a feature and ignore all the warnings about known vulnerabilities. We're publishing this new advisory to make it clear that all vulnerabilities concerning this feature are disclosed. > > For more information about tracking vulnerability issues related to the Command Execution features, check https://github.com/filebrowser/filebrowser/issues/5199.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- MEDIUM
- Confidence
- 10%
- Aliases
- GHSA-ffx7-75gc-jg7c, GO-2026-4713
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
Record history
Published Mar 19, 2026 · Last refreshed Oct 23, 2026