CVE-2021-32703
MEDIUMNextcloud Server <19.0.13, 20.011, 21.0.3 - Info Disclosure
Title source: llmDescription
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)
Core 6
Core References
Third Party Advisory x_refsource_confirm
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-375p-cxxq-gc9p
Patch, Third Party Advisory x_refsource_misc
https://github.com/nextcloud/server/pull/26945
Permissions Required x_refsource_misc
https://hackerone.com/reports/1173684
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J63NBVPR2AQCAWRNDOZSGRY5II4WS2CZ/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BVZS26RDME2DYTKET5AECRIZDFUGR2AZ/
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202208-17
Scores
CVSS v3
5.3
EPSS
0.0151
EPSS Percentile
71.1%
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