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critical9.8

CVE-2021-22915

Nextcloud server before 19.0.11, 20.0.10, 21.0.2 is vulnerable to brute force attacks due to lack of inclusion of IPv6 subnets in rate-limiting considerations.

Impact

Nextcloud server before 19.0.11, 20.0.10, 21.0.2 is vulnerable to brute force attacks due to lack of inclusion of IPv6 subnets in rate-limiting considerations. This could potentially result in an attacker bypassing rate-limit controls such as the Nextcloud brute-force protection.

Affected products

VendorProductAffected versions
NextcloudNextcloud Server
before 19.0.11
from 20.0.0 before 20.0.10
from 21.0.0 before 21.0.2
FedoraprojectFedora
Versions 33, 34

Weakness classification

CWE-307

References