GHSA-w8cc-3h7q-jhc3

    Dashboard / Vulnerabilities / GHSA-w8cc-3h7q-jhc3

    GHSA-w8cc-3h7q-jhc3

    Published: 24 May 2022Last Modified: 9 Dec 2025

    Summary: Mattermost Server has low entropy for authorization data as an OAuth 2.0 Service Provider

    Details: An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2, when serving as an OAuth 2.0 Service Provider. There is low entropy for authorization data.

    References: https://nvd.nist.gov/vuln/detail/CVE-2017-18883, https://github.com/mattermost/mattermost, https://mattermost.com/security-updates

    Affected packages

    Package

    Name: github.com/mattermost/mattermost-server

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

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -4.1.2

    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-w8cc-3h7q-jhc3 | CVE-DB