Vulnerability Database
289,697
Total vulnerabilities in the database
CVE-2023-32323
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. A malicious user on a Synapse homeserver X with permission to create certain state events can disable outbound federation from X to an arbitrary homeserver Y. Synapse instances with federation disabled are not affected. In versions of Synapse up to and including 1.73, Synapse did not limit the size of invite_room_state, meaning that it was possible to create an arbitrarily large invite event. Synapse 1.74 refuses to create oversized invite_room_state fields. Server operators should upgrade to Synapse 1.74 or newer urgently.
| Software | From | Fixed in |
|---|---|---|
matrix-synapse
|
- | 1.74.0 |
| matrix / synapse | - | 1.74.0 |
- https://github.com/matrix-org/synapse/issues/14492
- https://github.com/matrix-org/synapse/pull/14642
- https://github.com/matrix-org/synapse/security/advisories/GHSA-f3wc-3vxv-xmvr
- https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-67.yaml
- https://lists.fedoraproject.org/archives/list/[email protected]/message/UJIJRP5ZH6B3KGFLHCAKR2IX2Y4Z25QD
- https://lists.fedoraproject.org/archives/list/[email protected]/message/UJIJRP5ZH6B3KGFLHCAKR2IX2Y4Z25QD/