CVE-2024-53867
Medium
Description
Synapse is an open-source Matrix homeserver. The Sliding Sync feature on Synapse versions between 1.113.0rc1 and 1.120.0 can leak partial room state changes to users no longer in a room. Non-state events, like messages, are unaffected. This vulnerability is fixed in 1.120.1.
SeverityMedium
CVSS4.3
Exploit probability—
ProductMatrix-synapse
PublishedDec 3, 2024
First seenDec 3, 2024
Weakness typeCWE-497CWE-497
How to fix
Update
- matrix-synapse1.120.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| matrix-synapsePyPI | 1.113.0rc1 ≤ v < 1.120.1 | 1.120.1 |
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