CVE-2026-45078
Synapse CPU starvation (Denial of Service)
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-770 |
| Vendor | element-hq |
| Product | synapse |
| Published | May 28, 2026 |
| Last Updated | May 29, 2026 |
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Affected Versions
element-hq / synapse
< 1.152.1