matrix-rust-sdk is an implementation of a Matrix client-server library in Rust. matrix-sdk-crypto since version 0.8.0 and up to 0.11.0 does not correctly validate the sender of an encrypted event. Accordingly, a malicious homeserver operator can modify events served to clients, making those events appear to the recipient as if they were sent by another user. This vulnerability is fixed in 0.11.1 and 0.12.0.
History

Tue, 10 Jun 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 10 Jun 2025 15:45:00 +0000

Type Values Removed Values Added
Description matrix-rust-sdk is an implementation of a Matrix client-server library in Rust. matrix-sdk-crypto since version 0.8.0 and up to 0.11.0 does not correctly validate the sender of an encrypted event. Accordingly, a malicious homeserver operator can modify events served to clients, making those events appear to the recipient as if they were sent by another user. This vulnerability is fixed in 0.11.1 and 0.12.0.
Title matrix-sdk-crypto vulnerable to sender of encrypted events being spoofed by homeserver administrator
Weaknesses CWE-290
References
Metrics cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2025-06-10T15:32:00.822Z

Updated: 2025-06-10T15:46:22.358Z

Reserved: 2025-05-28T18:49:07.578Z

Link: CVE-2025-48937

cve-icon Vulnrichment

Updated: 2025-06-10T15:46:13.180Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-06-10T16:15:41.670

Modified: 2025-06-12T16:06:39.330

Link: CVE-2025-48937

cve-icon Redhat

No data.