title: Missing length validation of user displayname in nextcloud server
description: Nextcloud server is an open source personal cloud server. Affected versions of nextcloud server did not properly limit user display names which could allow a malicious users to overload the backing database and cause a denial of service. It is recommended that the Nextcloud Server is upgraded to 22.2.10, 23.0.7 or 24.0.3. There are no known workarounds for this issue.
problem types: CWE-400: Uncontrolled Resource Consumption
affected:
{
vendor: nextcloud
product: security-advisories
versions:
version: < 22.2.10, status: affected
version: >= 23.0.0, < 23.0.7, status: affected
version: >= 24.0.0, < 24.0.3, status: affected
}
metrics:
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: LOW
baseScore: 3.5
baseSeverity: LOW
]