CVE-2021-32726: 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…

PriorityP357critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

1.78%

75.5th percentile

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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
nextcloud	nextcloud_server	< 19.0.13	19.0.13
nextcloud	nextcloud_server	>= 20.0.0 < 20.0.11	20.0.11
nextcloud	nextcloud_server	>= 21.0.0 < 21.0.3	21.0.3
nextcloud	security-advisories	< 19.0.13	19.0.13
nextcloud	security-advisories	—	—
nextcloud	security-advisories	—	—

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

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