BIT-discourse-2021-43850

    Dashboard / Vulnerabilities / BIT-discourse-2021-43850

    BIT-discourse-2021-43850

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Denial of Service in discourse

    Details: Discourse is an open source platform for community discussion. In affected versions admins users can trigger a Denial of Service attack via the `/message-bus/_diagnostics` path. The impact of this vulnerability is greater on multisite Discourse instances (where multiple forums are served from a single application server) where any admin user on any of the forums are able to visit the `/message-bus/_diagnostics` path. The problem has been patched. Please upgrade to 2.8.0.beta10 or 2.7.12. No workarounds for this issue exist.

    References: https://github.com/discourse/discourse/commit/7a8ec129fb54f188b2da6588c9d24d3a36eb0d39, https://github.com/discourse/discourse/security/advisories/GHSA-59jr-pj65-qmvr, https://nvd.nist.gov/vuln/detail/CVE-2021-43850

    Affected packages

    Package

    Name: discourse

    Purl: pkg:bitnami/discourse

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -2.7.12

    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
    BIT-discourse-2021-43850 | CVE-DB