CVE-2021-43863

    Dashboard / Vulnerabilities / CVE-2021-43863

    CVE-2021-43863

    Published: 25 Jan 2022Last Modified: 7 Aug 2026

    Summary:

    Details: The Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. The Nextcloud Android app uses content providers to manage its data. Prior to version 3.18.1, the providers `FileContentProvider` and `DiskLruImageCacheFileProvider` have security issues (an SQL injection, and an insufficient permission control, respectively) that allow malicious apps in the same device to access Nextcloud's data bypassing the permission control system. Users should upgrade to version 3.18.1 to receive a patch. There are no known workarounds aside from upgrading.

    References: https://github.com/nextcloud/android/security/advisories/GHSA-vjp2-f63v-w479, https://hackerone.com/reports/1358597, https://github.com/nextcloud/android/commit/627caba60e69e223b0fc89c4cb18eaa76a95db95

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -a23cd53462c359812167ea8c0c8d4973e4d0e40d

    Affected versions

    rc-3.18.1-02
    rc-3.18.1-01
    rc-3.18.0-06
    rc-3.18.0-05
    rc-3.18.0-04
    rc-3.18.0-03
    rc-3.18.0-02
    rc-3.18.0-01

    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-2021-43863 | CVE-DB