CVE-2025-59047 matrix-sdk-base has panic in the `RoomMember::normalized_power_level()` method
A panic in the Matrix SDK base library allows denial of service when processing specific power levels, requiring an upgrade to fix.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-59047?
CVE-2025-59047 is a low-severity denial of service vulnerability in matrix-org matrix-rust-sdk, published on 11 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-682
Which versions are affected by CVE-2025-59047?
4 open source packages ship an affected version, including matrix-sdk-base.
| Package | Affected | Fixed in |
|---|---|---|
matrix-sdk-base crates.io | All versions | 0.14.1 |
matrix-sdk-base crates.io | All versions | 0.14.1 |
matrix-sdk-base crates.io | From 0.0.0-0 | 0.14.1 |
matrix-sdk-base crates.io | From 0.0.0-0 | 0.14.1 |
How do I fix CVE-2025-59047?
Upgrade matrix-sdk-base to 0.14.1 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-59047 being exploited?
There is no known exploitation of CVE-2025-59047 in the wild and no public exploit code.
Sources
Also known as GHSA-qhj8-q5r6-8q6j, RUSTSEC-2025-0000, RUSTSEC-2025-0065.