The following issues are fixed in 1.105.1.

- [GHSA-3h7q-rfh9-xm4v](https://github.com/element-hq/synapse/security/advisories/GHSA-3h7q-rfh9-xm4v) / [CVE-2024-31208](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-31208) — High Severity

  Weakness in auth chain indexing allows DoS from remote room members through disk fill and high CPU usage.

See the advisories for more details. If you have any questions, email security@element.io.
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