Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Akka's akka-cluster-metrics module, versions up to and including 2.10.6, uses Java serialization for cluster metrics, and the affected packages are com.typesafe.akka:akka-cluster-metrics_3 and com.typesafe.akka:akka-cluster-metrics_2.13. The source gives few details about how an attacker would reach or exploit this serialization path. No fix is listed.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 6.0 | Medium | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L | CNA (mitre) |
- CISA KEV Not listed.
- EPSS 0.0023, the 13th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:10 UTC First seen by agentprime
- 31 Oct 2026, 15:10 UTC Confirmed by OSV