matrix-synapse: Synapse is an open source Matrix homeserver implementation
CVE-2026-45078 is fixed in matrix-synapse on 1 platform by DEBIAN-CVE-2026-45078 (version 1.152.1-1), released June 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, local authenticated users can cause Synapse to starve other requests of CPU and lead to other requests failing, causing other users to be denied service. This vulnerability is fixed in 1.152.1.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| matrix-synapse · Debian 14 | 1.152.1-1 | DEBIAN-CVE-2026-45078 | Jun 24, 2026 |
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