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CVE-2026-45078

MEDIUM CVSS: 5.5 Published: 2026-05-28 Modified: 2026-06-17

Description

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.

Affected Platforms

Element Synapse

Weakness Type

CWE-770

References