CVE-2026-72838 PUBLISHED

FileBrowser before 2.63.19 Disk Exhaustion via TUS Upload

Assigner: VulnCheck
Reserved: 10.08.2026 Published: 14.08.2026 Updated: 14.08.2026

FileBrowser versions before 2.63.19 fail to enforce the declared Upload-Length in the TUS resumable-upload PATCH endpoint, allowing authenticated users to write arbitrary data to disk. Attackers can send oversized request bodies that exceed the declared upload length to exhaust available disk space and cause service unavailability.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 7.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 6.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	filebrowser
Product	filebrowser
Versions	Default: unaffected affected from 0 to 2.63.19 (excl.) Version 2.63.19 is unaffected

CVE-2026-72838 PUBLISHED

FileBrowser before 2.63.19 Disk Exhaustion via TUS Upload

Metrics

Product Status

Credits

References

Problem Types