GHSA-mp92-3jfm-3575

    Dashboard / Vulnerabilities / GHSA-mp92-3jfm-3575

    GHSA-mp92-3jfm-3575

    Published: 31 Oct 2023Last Modified: 10 Sept 2026

    Summary: Synapse vulnerable to leak of remote user device information

    Details: ### Impact Cached device information of remote users can be queried from Synapse. This can be used to enumerate the remote users known to a homeserver. ### Patches System administrators are encouraged to upgrade to Synapse 1.95.1 as soon as possible. ### Workarounds The `federation_domain_whitelist` can be used to limit federation traffic with a homeserver.

    References: https://github.com/matrix-org/synapse/security/advisories/GHSA-mp92-3jfm-3575, https://nvd.nist.gov/vuln/detail/CVE-2023-43796, https://github.com/matrix-org/synapse/commit/daec55e1fe120c564240c5386e77941372bf458f, https://github.com/matrix-org/synapse, https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-230.yaml, https://lists.fedoraproject.org/archives/list/[email protected]/message/2IDEEZMFJBDLTFHQUTZRJJNCOZGQ2ZVS, https://lists.fedoraproject.org/archives/list/[email protected]/message/VH3RNC5ZPQZ4OKPSL4E6BBJSZOQLGDEY, https://security.gentoo.org/glsa/202401-12

    Affected packages

    Package

    Name: matrix-synapse

    Purl: pkg:pypi/matrix-synapse

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.95.1

    Affected versions

    0.33.5
    0.33.5.1
    0.33.6
    0.33.6rc1
    0.33.7
    0.33.7rc1
    0.33.7rc2
    0.33.8
    0.33.8rc2
    0.33.9

    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-mp92-3jfm-3575 | CVE-DB