Critical
Low
Medium

CVE-2025-61672

Alias:

Overview

Synapse is an open source Matrix homeserver implementation. Lack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking outbound federation to other homeservers. ...

Critical
Low
Medium
No items found.

Severity / CVSS Score:  (Critical)

CWE:

Discovery date:

Authentication required: NoneYes

Attack Vector: None

Affected Components

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