๐Ÿ›ก๏ธ CVE-2025-66622
๐ŸŸ  CVSS 7.5 โ€” High โœ… No Known Exploit CWE-755 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

matrix-sdk-base is the base component to build a Matrix client library. Versions 0.14.1 and prior are unable to handle responses that include custom m.room.join_rules values due to a serialization bug. This can be exploited to cause a denial-of-service condition, if a user is invited to a room with non-standard join rules, the crate's sync process will stall, preventing further processing for all rooms. This is fixed in version 0.16.0.

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-755
Public Exploit โœ… No
Source NVD
Published 2025-12-09
Updated 2026-06-15
Modified 2026-03-17

Affected Packages

Software From version Fixed in
matrix-rust-sdk โ€” 0.16.0
matrix-sdk-base โ€” โ€”

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