GHSA-c37r-v8jx-7cv2

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    GHSA-c37r-v8jx-7cv2

    Published: 27 Nov 2023Last Modified: 10 Sept 2026

    Summary: Mattermost Uncontrolled Resource Consumption vulnerability

    Details: Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing a attacker to consume excessive resources, possibly leading to Denial of Service, by patching the field of a block using a specially crafted string. 

    References: https://nvd.nist.gov/vuln/detail/CVE-2023-40703, 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- 9.1.0
    Fixed -9.1.1

    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-c37r-v8jx-7cv2 | CVE-DB