CVE-2024-53867
4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| element-hq | synapse | >= 1.113.0rc1, < 1.120.1 | affected |
Weaknesses
- CWE-497: CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/element-hq/synapse/security/advisories/GHSA-56w4-5538-8v8h
- https://github.com/matrix-org/matrix-spec-proposals/pull/4186
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