CVE-2021-32703

MEDIUM

Nextcloud Server <19.0.13, 20.011, 21.0.3 - Info Disclosure

Title source: llm

Description

Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, there was a lack of ratelimiting on the shareinfo endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.

References (6)

[Third Party Advisory] https://github.com/nextcloud/security-advisories/security/advisories/GHSA-375p-cxxq-gc9p

[Patch, Third Party Advisory] https://github.com/nextcloud/server/pull/26945

[Permissions Required] https://hackerone.com/reports/1173684

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J63NBVPR2AQCAWRNDOZSGRY5II4WS2CZ/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BVZS26RDME2DYTKET5AECRIZDFUGR2AZ/

[Third Party Advisory] https://security.gentoo.org/glsa/202208-17

Scores

CVSS v3 5.3

EPSS 0.0056

EPSS Percentile 68.2%

Attack Vector NETWORK

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

Details

CWE

CWE-799 CWE-307

Status published

Products (3)

fedoraproject/fedora 33

fedoraproject/fedora 34

nextcloud/nextcloud_server < 19.0.13

Published Jul 12, 2021

Tracked Since Feb 18, 2026