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    CVE-2026-46712

    Misskey is an open source, federated social media platform. Versions 2025.3.2 and later, but prior to 2026.5.4, contain a vulnerability where a lack of proper permission checks allows access to certain data points from the Direct Messages (formerly Chat) feature, regardless of account permissions. This vulnerability occurs whether or not federation is enabled. Notes created with "specified" visibility (formerly "direct" visibility) are not affected. This issue has been fixed in version 2026.5.4.

    Published:Aug 3, 2026
    Last Modified:Aug 5, 2026
    EPS:Aug 3, 2026
    EPSS Score:0.00215
    CVSS Score:2.3

    Affected Products

    Vendor
    Misskey
    Product
    Misskey

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-46714 (CVSS 5.1) — Misskey is an open source, federated social media platform. IVersions 8.63.0 and later, but prior to 2026.5.4,…
    CVE-2026-47746 (CVSS 8.9) — Misskey is an open source, federated social media platform. Versions 12.37.0 and later, but prior to 2026.5.4,…
    CVE-2026-46713 (CVSS 9.2) — Misskey is an open source, federated social media platform. Versions 12.37.0 and later, but prior to 2026.5.4,…
    CVE-2026-48115 (CVSS 6.3) — Misskey is an open source, federated social media platform. All Misskey servers running versions 2024.5.0 and …
    CVE-2026-57574 (CVSS 7.4) — Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a vulnerabilit…
    CVE-2026-57575 (CVSS 6.9) — Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a Server-Side …
    CVE-2026-28433 (CVSS 2.3) — Misskey is an open source, federated social media platform. All Misskey servers running versions 10.93.0 and l…
    CVE-2026-28432 (CVSS 7.1) — Misskey is an open source, federated social media platform. All Misskey servers prior to 2026.3.1 contain a vu…
    CVE-2026-28431 (CVSS 9.2) — Misskey is an open source, federated social media platform. All Misskey servers running versions 8.45.0 and la…
    CVE-2025-66482 (CVSS 6.9) — Misskey is an open source, federated social media platform. Attackers who use an untrusted reverse proxy or no…

    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