CVE-2025-53393 akka-cluster-metrics uses Java serialization for cluster metrics
An attacker can execute arbitrary code by exploiting unsafe Java serialization in Akka cluster metrics.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-53393?
CVE-2025-53393 is a medium-severity unsafe deserialization vulnerability in Akka, published on 28 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In Akka through 2.10.6, akka-cluster-metrics uses Java serialization for cluster metrics.
Weakness: CWE-502
Which versions are affected by CVE-2025-53393?
4 open source packages ship an affected version, including com.typesafe.akka:akka-cluster-metrics_2.13 and com.typesafe.akka:akka-cluster-metrics_3.
| Package | Affected | Fixed in |
|---|---|---|
com.typesafe.akka:akka-cluster-metrics_2.13 Maven | All versions to 2.10.6 | None |
com.typesafe.akka:akka-cluster-metrics_2.13 Maven | All versions to 2.10.6 | None |
com.typesafe.akka:akka-cluster-metrics_3 Maven | All versions to 2.10.6 | None |
com.typesafe.akka:akka-cluster-metrics_3 Maven | All versions to 2.10.6 | None |
How do I fix CVE-2025-53393?
No fix has been published for CVE-2025-53393 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-53393 being exploited?
There is no known exploitation of CVE-2025-53393 in the wild and no public exploit code.
Sources
Also known as GHSA-358m-fq53-hp87.