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CVE-2025-59047

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Date: September 11, 2025

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.

Severity Score

Related Resources (10)

https://github.com/matrix-org/matrix-rust-sdk
https://github.com/matrix-org/matrix-rust-sdk/commit/ce3b67f801446387972ff120e907ca828a9f1207
https://github.com/matrix-org/matrix-rust-sdk/releases/tag/matrix-sdk-base-0.14.1
https://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-qhj8-q5r6-8q6j
https://crates.io/crates/matrix-sdk-base
https://rustsec.org/advisories/RUSTSEC-2025-0000.html
https://rustsec.org/advisories/RUSTSEC-2025-0065.html
https://nvd.nist.gov/vuln/detail/CVE-2025-59047
https://github.com/matrix-org/matrix-rust-sdk/pull/5635
https://www.mend.io/vulnerability-database/CVE-2025-59047

Severity Score

Weakness Type (CWE)

Incorrect Calculation

CWE-682

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

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