CVE-2021-32654: Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.11, 20.0.10, and 21.0.2, an attacker is able to receive write/read…

PriorityP356critical9.1CVSS 3.1

AVNACLPRNUINSUCHIHAN

EPSS

1.85%

76.4th percentile

Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.11, 20.0.10, and 21.0.2, an attacker is able to receive write/read privileges on any Federated File Share. Since public links can be added as federated file share, this can also be exploited on any public link. Users can upgrade to patched versions (19.0.11, 20.0.10 or 21.0.2) or, as a workaround, disable federated file sharing.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
nextcloud	nextcloud_server	< 19.0.11	19.0.11
nextcloud	nextcloud_server	>= 20.0.0 < 20.0.10	20.0.10
nextcloud	nextcloud_server	>= 21.0.0 < 21.0.2	21.0.2
nextcloud	security-advisories	< 19.0.11	19.0.11
nextcloud	security-advisories	—	—
nextcloud	security-advisories	—	—

CVSS provenance

nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

nvdv2.06.4MEDIUMAV:N/AC:L/Au:N/C:P/I:P/A:N

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