CVE-2022-31014

    Dashboard / Vulnerabilities / CVE-2022-31014

    CVE-2022-31014

    Published: 5 Jul 2022Last Modified: 12 Aug 2026

    Summary: SMTP Command Injection in iCalendar Attachments to emails via newlines in Nextcloud Server

    Details: Nextcloud server is an open source personal cloud server. Affected versions were found to be vulnerable to SMTP command injection. The impact varies based on which commands are supported by the backend SMTP server. However, the main risk here is that the attacker can then hijack an already-authenticated SMTP session and run arbitrary SMTP commands as the email user, such as sending emails to other users, changing the FROM user, and so on. As before, this depends on the configuration of the server itself, but newlines should be sanitized to mitigate such arbitrary SMTP command injection. It is recommended that the Nextcloud Server is upgraded to 22.2.8 , 23.0.5 or 24.0.1. There are no known workarounds for this issue.

    References: https://hackerone.com/reports/1516377, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31014.json, https://github.com/nextcloud/security-advisories/security/advisories/GHSA-264h-3v4w-6xh2, https://nvd.nist.gov/vuln/detail/CVE-2022-31014, https://github.com/nextcloud/server/pull/32428

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -cfef3c8b0cd3e3a78dec19da742a06ea515b2758

    Affected versions

    24.0.0-NA
    24.0.0-beta1
    24.0.0-beta2
    24.0.0-beta3
    24.0.0-rc1
    24.0.0-rc2
    24.0.0-rc3

    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-2022-31014 | CVE-DB