Rapid7

vulnerability

Alpine Linux: CVE-2024-52815: Improper Input Validation

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Dec 3, 2024
Added
Aug 8, 2025
Modified
Mar 25, 2026

Description

Synapse is an open-source Matrix homeserver. Synapse versions before 1.120.1 fail to properly validate invites received over federation. This vulnerability allows a malicious server to send a specially crafted invite that disrupts the invited user's /sync functionality. Synapse 1.120.1 rejects such invalid invites received over federation and restores the ability to sync for affected users.

Solution

alpine-linux-upgrade-synapse
Title
Rapid7 Labs

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