CVE-2025-62175

Summary

Mastodon is a free, open-source social network server based on ActivityPub. In versions before 4.4.6, 4.3.14, and 4.2.27, disabling or suspending a user account does not disconnect the account from the streaming API. This allows disabled or suspended accounts to continue receiving real-time updates through existing streaming connections and to establish new streaming connections, even though they cannot interact with other API endpoints. This undermines moderation actions, as administrators expect disabled or suspended accounts to be fully disconnected from the service. This issue has been patched in versions 4.4.6, 4.3.14, and 4.2.27. No known workarounds exist.

Affected Software

VendorProductVersion RangeStatus
mastodonmastodon>= 4.4.0-beta.1, < 4.4.6affected
mastodonmastodon>= 4.3.0-beta.1, < 4.3.14affected
mastodonmastodon< 4.2.27affected

Weaknesses

  • CWE-273: CWE-273: Improper Check for Dropped Privileges
  • CWE-274: CWE-274: Improper Handling of Insufficient Privileges

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References