GHSA-63cv-4pc2-4fcf

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    GHSA-63cv-4pc2-4fcf

    Published: 6 Dec 2023Last Modified: 10 Sept 2026

    Summary: Mattermost Exposure of Sensitive Information to an Unauthorized Actor vulnerability

    Details: Mattermost is grouping calls in the /metrics endpoint by id and reports that id in the response. Since this id is the channelID, the public /metrics endpoint is revealing channelIDs.

    References: https://nvd.nist.gov/vuln/detail/CVE-2023-6459, https://github.com/mattermost/mattermost, https://mattermost.com/security-updates

    Affected packages

    Package

    Name: github.com/mattermost/mattermost-server/v6

    Purl: pkg:golang/github.com/mattermost/mattermost-server/v6

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -7.8.14

    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
    GHSA-63cv-4pc2-4fcf | CVE-DB