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Improper Input Validation Affecting synapse package, versions <1.127.1-r0

Severity

 Recommended
low

Based on default assessment until relevant scores are available.

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  • Snyk IDSNYK-ALPINE321-SYNAPSE-9538155
  • published27 Mar 2025
  • disclosed27 Mar 2025
Report a new vulnerability Found a mistake?

Introduced: 27 Mar 2025

NewCVE-2025-30355  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 synapse to version 1.127.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream synapse package and not the synapse package as distributed by Alpine. See How to fix? for Alpine:3.21 relevant fixed versions and status.

Synapse is an open source Matrix homeserver implementation. A malicious server can craft events which, when received, prevent Synapse version up to 1.127.0 from federating with other servers. The vulnerability has been exploited in the wild and has been fixed in Synapse v1.127.1. No known workarounds are available.