CVE-2025-59047: Matrix-Org Matrix-Rust-SDK

Low severity, CVSS 2.7. EPSS: 0.4% chance of exploitation in the next 30 days.

matrix-sdk-base is the base component to build a Matrix client library. In matrix-sdk-base before 0.14.1, calling the `RoomMember::normalized_power_level()` method can cause a panic if a room member has a power level of `Int::Min`. The issue is fixed in matrix-sdk-base 0.14.1. The affected method isn’t used internally, so avoiding calling `RoomMember::normalized_power_level()` prevents the panic.

Affected products

• Matrix-Org Matrix-Rust-SDK: before 0.14.1 (fixed in 0.14.1)

Published 2025-09-11. Last modified 2026-06-17.