# akka-cluster-metrics uses Java serialization for cluster metrics

Advisory record · `GHSA-358m-fq53-hp87`

- **Identifiers:** `GHSA-358m-fq53-hp87` · `CVE-2025-53393`
- **State:** Confirmed
- **Severity:** CVSS 6.0 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-502](https://cwe.mitre.org/data/definitions/502.html)
- **Tags:** [Insecure deserialization](https://agentprime.io/advisories/tag/deserialization.md)
- **Published:** 29 Jun 2025
- **Updated:** 30 Jun 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 29 Jun 2025, 00:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `com.typesafe.akka:akka-cluster-metrics_3` (Maven): affected `<=2.10.6`; no fixed version yet
- `com.typesafe.akka:akka-cluster-metrics_2.13` (Maven): affected `<=2.10.6`; no fixed version yet

## 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.

Written 7 Nov 2026.

## 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

- 6.0 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L`, from 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](https://osv.dev/vulnerability/GHSA-358m-fq53-hp87)

## Sources

- [GitHub Advisory Database: GHSA-358m-fq53-hp87](https://github.com/advisories/GHSA-358m-fq53-hp87)
- [OSV: GHSA-358m-fq53-hp87](https://osv.dev/vulnerability/GHSA-358m-fq53-hp87)
- <https://nvd.nist.gov/vuln/detail/CVE-2025-53393>
- <https://github.com/akka/akka/pull/32748>
- <https://github.com/akka/akka/commit/d69a082abfa26ccc076f090a6486ccfee9d7c481>
- <https://github.com/akka/akka>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-358m-fq53-hp87>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-358m-fq53-hp87/>. Everything for agents: <https://agentprime.io/llms.txt>.