# Apache Cassandra: unrestricted deserialization of JMX authentication credentials

Advisory record · `GHSA-rgfx-7p65-3ff4`

- **Identifiers:** `GHSA-rgfx-7p65-3ff4` · `BIT-cassandra-2024-27137` · `CVE-2024-27137`
- **State:** Confirmed
- **Severity:** CVSS 5.9 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-287](https://cwe.mitre.org/data/definitions/287.html) · [CWE-668](https://cwe.mitre.org/data/definitions/668.html)
- **Tags:** [Authentication bypass](https://agentprime.io/advisories/tag/auth-bypass.md) · [Information disclosure](https://agentprime.io/advisories/tag/info-disclosure.md)
- **Published:** 4 Feb 2025
- **Updated:** 20 Feb 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 4 Feb 2025, 12:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.apache.cassandra:cassandra-all` (Maven): affected `>=5.0-beta1, <5.0.3 || >=4.1.0, <4.1.8 || >=4.0.2, <4.0.15`; fixed in `5.0.3`, `4.1.8`, `4.0.15`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Apache Cassandra (org.apache.cassandra:cassandra-all, Maven) versions 4.0.2 through 5.0.2 running Java 11 are affected. A local attacker without access to the Cassandra process or configuration files can manipulate the RMI registry to perform a man-in-the-middle attack, capturing JMX usernames and passwords and then using them for unauthorized JMX operations. Upgrade to 4.0.15, 4.1.8, or 5.0.3 or later.

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

- 5.9 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.0028, the 21st percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:11 UTC: First seen by agentprime
- 31 Oct 2026, 15:11 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-rgfx-7p65-3ff4)

## Sources

- [GitHub Advisory Database: GHSA-rgfx-7p65-3ff4](https://github.com/advisories/GHSA-rgfx-7p65-3ff4)
- [OSV: GHSA-rgfx-7p65-3ff4](https://osv.dev/vulnerability/GHSA-rgfx-7p65-3ff4)
- <https://nvd.nist.gov/vuln/detail/CVE-2024-27137>
- <https://github.com/apache/cassandra>
- <https://lists.apache.org/thread/jsk87d9yv8r204mgqpz1qxtp5wcrpysm>
- <https://security.netapp.com/advisory/ntap-20250214-0004>

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-rgfx-7p65-3ff4>, 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-rgfx-7p65-3ff4/>. Everything for agents: <https://agentprime.io/llms.txt>.