CVE catalog
CVE-2024-37302
UBUNTU-CVE-2024-37302
- Severity
- Unknown
- Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.60% · Oct 25, 2026
Synapse is an open-source Matrix homeserver. Synapse versions before 1.106 are vulnerable to a disk fill attack, where an unauthenticated adversary can induce Synapse to download and cache large amounts of remote media. The default rate limit strategy is insufficient to mitigate this. This can lead to a denial of service, ranging from further media uploads/downloads failing to completely unavailability of the Synapse process, depending on how Synapse was deployed. Synapse 1.106 introduces a new "leaky bucket" rate limit on remote media downloads to reduce the amount of data a user can request at a time. This does not fully address the issue, but does limit an unauthenticated user's ability to request large amounts of data to be cached.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Ubuntu | matrix-synapse | pro | 0.19.2+dfsg-6 | vulnerable |
| Ubuntu | matrix-synapse | pro | 0.24.0+dfsg-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 0.24.0+dfsg-1ubuntu0.1~esm1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 0.24.0+dfsg-1ubuntu0.1~esm4 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.3.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.4.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.5.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.5.1-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.6.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.6.1-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.7.0-2 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.7.1-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.7.2-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.7.3-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.8.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.9.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.9.1-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.10.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.10.0-2 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.11.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.11.0-1ubuntu0.1~esm2 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.39.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.47.0-2 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.47.1-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.48.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.49.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.49.2-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.50.1-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.50.2-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.51.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.52.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.53.0-1 | vulnerable |
| Ubuntu | matrix-synapse | pro | 1.53.0-1ubuntu0.1~esm2 | vulnerable |
| Ubuntu | matrix-synapse | 24.04 | 1.90.0-1 | vulnerable |
| Ubuntu | matrix-synapse | 24.04 | 1.100.0-1ubuntu1 | vulnerable |
Fixed-version evidence
OpenFactory catalog packages
No matching packages in this catalog.
Observed: