CVE-2021-32703

    Dashboard / Vulnerabilities / CVE-2021-32703

    CVE-2021-32703

    Published: 12 Jul 2021Last Modified: 7 Aug 2026

    Summary:

    Details: 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: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BVZS26RDME2DYTKET5AECRIZDFUGR2AZ/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J63NBVPR2AQCAWRNDOZSGRY5II4WS2CZ/, https://github.com/nextcloud/security-advisories/security/advisories/GHSA-375p-cxxq-gc9p, https://security.gentoo.org/glsa/202208-17, https://hackerone.com/reports/1173684, https://github.com/nextcloud/server/pull/26945

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -3845aa47869e6787bf9b25cae59f9b999c6f7807

    Affected versions

    v19.0.13rc1
    v19.0.11
    v19.0.11RC1
    v19.0.10
    v19.0.10RC1
    v19.0.9
    v19.0.9RC1
    v19.0.8
    v19.0.8RC1
    v19.0.7
    v19.0.7RC1
    v19.0.6
    v19.0.6RC2
    v19.0.5
    v19.0.5RC2
    v19.0.5RC1
    v19.0.4
    v19.0.4RC2
    v19.0.40RC1
    v19.0.3
    v19.0.3RC1
    v19.0.2
    v19.0.2RC2
    v19.0.2RC1
    v19.0.1
    v19.0.1RC1
    v19.0.0
    v19.0.0RC3
    v19.0.0RC1
    v19.0.0beta7
    v19.0.0beta6
    v19.0.0beta5
    v19.0.0beta4
    v19.0.0beta3
    v19.0.0beta2
    v19.0.0beta1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-32703 | CVE-DB