CVE-2022-23641

    Dashboard / Vulnerabilities / CVE-2022-23641

    CVE-2022-23641

    Published: 15 Feb 2022Last Modified: 6 Oct 2026

    Summary: Denial of Service in Discourse

    Details: Discourse is an open source discussion platform. In versions prior to 2.8.1 in the `stable` branch, 2.9.0.beta2 in the `beta` branch, and 2.9.0.beta2 in the `tests-passed` branch, users can trigger a Denial of Service attack by posting a streaming URL. Parsing Oneboxes in the background job trigger an infinite loop, which cause memory leaks. This issue is patched in version 2.8.1 of the `stable` branch, 2.9.0.beta2 of the `beta` branch, and 2.9.0.beta2 of the `tests-passed` branch. As a workaround, disable onebox in admin panel completely or specify allow list of domains that will be oneboxed.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23641.json, https://github.com/discourse/discourse/security/advisories/GHSA-22xw-f62v-cfxv, https://nvd.nist.gov/vuln/detail/CVE-2022-23641, https://github.com/discourse/discourse/commit/a34075d205a8857e29574ffd82aaece0c467565e, https://github.com/discourse/discourse/pull/15927

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -76195216ffe346d88139675701a6f4353fb15b99

    Affected versions

    beta <= 2.9.0.beta1

    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