Vulnerability record · CVE-2023-32319 · published 26 May 2023

CVE-2023-32319: Nextcloud server improper restriction of authentication attempts vulnerability

Nextcloud · Nextcloud Server

Nextcloud server is an open source personal cloud implementation. Missing brute-force protection on the WebDAV endpoints via the basic auth header allowed to brute-force user credentials when the provided user name was not an email address. Users from version 24.0.0 onward are affected. This issue has been addressed in releases 24.0.11, 25.0.5 and 26.0.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

6.5 CVSS 3.1 Medium EPSS 0.70% · top 48.9% CWE-307 · Improper restriction of authentication attempts

6.5CVSS 3.1 base score

0.70%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References

17 Jun 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Nextcloud Server Nextcloud

References

Link	Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-mr7q-xf62-fw54	Vendor Advisory
https://github.com/nextcloud/server/pull/37227	Patch
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-mr7q-xf62-fw54	Vendor Advisory
https://github.com/nextcloud/server/pull/37227	Patch

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-32319), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.