CVE-2026-45076EPSS p28.5%

CVE-2026-45076CVE-2026-45076

element / synapse

Description

Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, in federated rooms, malicious homeservers can craft room events in such a way that prevents Synapse from providing full history to paginating clients. Clients could therefore fail to display room history. This vulnerability is fixed in 1.152.1.

Scoring

CVSS 2.7 ()
VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
EPSS0.37% probability of exploitation · percentile 28.5% · 2026-06-18T12:00:27Z
Last modified2026-06-04

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.