GHSA-q7rx-w656-fwmv

    Dashboard / Vulnerabilities / GHSA-q7rx-w656-fwmv

    GHSA-q7rx-w656-fwmv

    Published: 2 Jan 2024Last Modified: 10 Sept 2026

    Summary: Mattermost notified all users in the channel when using WebSockets to respond individually

    Details: Mattermost fails to scope the WebSocket response around notified users to a each user separately resulting in the WebSocket broadcasting the information about who was notified about a post to everyone else in the channel.

    References: https://nvd.nist.gov/vuln/detail/CVE-2023-48732, https://github.com/mattermost/mattermost/commit/851515be222160bee0a495c0d411056b19ed4111, https://github.com/advisories/GHSA-q7rx-w656-fwmv, https://github.com/mattermost/mattermost, https://mattermost.com/security-updates

    Affected packages

    Package

    Name: github.com/mattermost/mattermost/server/v8

    Purl: pkg:golang/github.com/mattermost/mattermost/server/v8

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -8.1.7

    Affected versions

    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