AIKIDO-2025-10552
matrix-synapse is vulnerable to Improper Handling of Insufficient Permissions or Privileges
85
High Risk
This Affects:
matrix-synapseTL;DR
Two high-severity protocol vulnerabilities in state resolution will be fixed via an off-cycle Matrix spec update that introduces room v12, with coordinated server releases scheduled for Aug 11, 2025 and embargo lift on Aug 14, 2025 — operators of publicly federated homeservers should prepare to upgrade promptly.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
matrix-synapse is vulnerable to Improper Handling of Insufficient Permissions or Privileges in versions 0.0.1 - 1.135.0.
How to fix this
Upgrade the matrix-synapse library to the patch version.
Links
GitHub Releases
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SOC 2Compliant
ISO 27001Compliant