CVE-2024-53867

MEDIUM EPSS 34.2%
Published Dec 3, 20241y ago · Modified Jun 17, 20262w ago
4.3 CVSS 3.1
Medium
Find Similar
Published Dec 3, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
4.3
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
34.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-497

References 2

  • github.com https://github.com/element-hq/synapse/security/advisories/GHSA-56w4-5538-8v8h
  • github.com https://github.com/matrix-org/matrix-spec-proposals/pull/4186

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.