Improper Input Validation Affecting matrix-synapse package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UBUNTU2404-MATRIXSYNAPSE-8455549
- published8 Apr 2025
- disclosed3 Dec 2024
Introduced: 3 Dec 2024
CVE-2024-52815 (opens in a new tab)How to fix?
There is no fixed version for Ubuntu:24.04 matrix-synapse.
NVD Description
Note: Versions mentioned in the description apply only to the upstream matrix-synapse package and not the matrix-synapse package as distributed by Ubuntu.
See How to fix? for Ubuntu:24.04 relevant fixed versions and status.
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.