CVE-2021-32741
mediumpriority · track · 21EPSS 0.013 · 71 %ileEUUSEPSS · scored 2026-10-27
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 public share link mount 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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (6)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
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references (12)
External citations — patches, advisories, analysis.
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-crvj-vmf7-xrvrcnnvd
- https://github.com/nextcloud/server/pull/26958cnnvd
- https://hackerone.com/reports/1192144cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-32741cnnvd
- https://vigilance.fr/vulnerability/Nextcloud-Server-ten-vulnerabilities-35949cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2021071213cnnvd
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-crvj-vmf7-xrvrenisa_euvd
- https://github.com/nextcloud/server/pull/26958enisa_euvd
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