Auth bypass in Nextcloud End-To-End Encryption
CVE-2021-22906
Nextcloud End-to-End Encryption before 1.5.3, 1.6.3 and 1.7.1 suffers from a denial of service vulnerability due to permitting any authenticated users to lock files of other users.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.007 (50.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Nextcloud End-to-end_encryption
- N/a Nextcloud End-to-end Encryption — versions Fixed in 1.5.3, 1.6.3, 1.7.1
Weakness classification (CWE)
References
- support@hackerone.com (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- support@hackerone.com (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-22906?
- CVE-2021-22906 is a medium-severity vulnerability in Nextcloud End-To-End Encryption, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2021-06-11.
- How severe is CVE-2021-22906?
- Medium severity. CVSS v3 base score is 6.5 out of 10.