CVE-2021-32726
High
Description
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, webauthn tokens were not deleted after a user has been deleted. If a victim reused an earlier used username, the previous user could gain access to their account. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
SeverityHigh
CVSS7.1
Exploit probability—
Product
Nextcloud Server
PublishedJul 12, 2021
First seenJul 12, 2021
Weakness typeCWE-708CWE-708
How to fix
Update
- nextcloud nextcloud_server19.0.13, 20.0.11, 21.0.3 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nextcloud nextcloud_server | v < 19.0.13, 20.0.0 ≤ v < 20.0.11, 21.0.0 ≤ v < 21.0.3 | 19.0.13, 20.0.11, 21.0.3 |
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