GHSA-6mx3-9qfh-77gj

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    GHSA-6mx3-9qfh-77gj

    Published: 29 Feb 2024Last Modified: 7 Aug 2026

    Summary: Mattermost denial of service through long emoji value

    Details: Mattermost fails to properly validate the length of the emoji value in the custom user status, allowing an attacker to send multiple times a very long string as an emoji value causing high resource consumption and possibly crashing the server.

    References: https://nvd.nist.gov/vuln/detail/CVE-2024-24988, 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- 9.3.0
    Fixed -9.3.1

    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-6mx3-9qfh-77gj | CVE-DB