Description
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a bypass in the quota limitation. Due to not properly sanitizing values provided by the `OC-Total-Length` HTTP header an authenticated adversary may be able to exceed their configured user quota. Thus using more space than allowed by the administrator.
References (2)
Core 2
Core References
Broken Link, Patch, Vendor Advisory x_refsource_confirm
https://nextcloud.com/security/advisory/?id=nc-sa-2017-005
Third Party Advisory x_refsource_misc
https://hackerone.com/reports/173622
Scores
CVSS v3
4.3
EPSS
0.0025
EPSS Percentile
48.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Details
CWE
CWE-20
CWE-807
Status
published
Products (2)
Nextcloud/Nextcloud Server
All versions before 9.0.55 and 10.0.2
nextcloud/nextcloud_server
< 9.0.55
Published
Apr 05, 2017
Tracked Since
Feb 18, 2026