CVE-2017-0887
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a bypass in the quota limitation.
Does this matter?
Lower severity and a low EPSS score (0.89%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 0.89% probability · 59th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-807, CWE-20
- Affected
- nextcloud/nextcloud server
- Source
- support@hackerone.com
EPSS 0.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://hackerone.com/reports/173622Third Party Advisory
- https://nextcloud.com/security/advisory/?id=nc-sa-2017-005Broken Link, Patch, Vendor Advisory
- https://hackerone.com/reports/173622Third Party Advisory
- https://nextcloud.com/security/advisory/?id=nc-sa-2017-005Broken Link, Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.