CVE-2024-52815

MEDIUM

5.3

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.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published12/3/2024

Last Modified8/26/2025

Sourcenvd

Honeypot Sightings0

Affected Products

matrix:synapse

Weaknesses (CWE)

CWE-20

References

https://github.com/element-hq/synapse/security/advisories/GHSA-f3r3-h2mq-hx2h(security-advisories@github.com)

IOC Correlations

No correlations recorded

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