# Apache Cassandra has an authenticated DoS over CQL

Advisory record · `GHSA-qffm-gf3j-6mvg`

- **Identifiers:** `GHSA-qffm-gf3j-6mvg` · `CVE-2026-32588`
- **State:** Confirmed
- **Severity:** CVSS 6.5 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-400](https://cwe.mitre.org/data/definitions/400.html)
- **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md)
- **Published:** 7 Apr 2026
- **Updated:** 8 Apr 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 7 Apr 2026, 18:31 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 `>=4.0, <4.0.20 || >=4.1, <4.1.11 || >=5.0, <5.0.7`; fixed in `4.0.20`, `4.1.11`, `5.0.7`

## Machine-written summary

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

> Apache Cassandra versions 4.0 before 4.0.20, 4.1 before 4.1.11, and 5.0 before 5.0.7 (Maven package org.apache.cassandra:cassandra-all) are affected. An authenticated user can raise query latencies by repeatedly changing their password over CQL, causing a denial of service. Upgrade to 4.0.20, 4.1.11, 5.0.7, or a later version.

Written 3 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

- 6.5 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`, from ADP (CISA-ADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0055, the 46th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:20 UTC: First seen by agentprime
- 31 Oct 2026, 14:20 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-qffm-gf3j-6mvg)

## Sources

- [GitHub Advisory Database: GHSA-qffm-gf3j-6mvg](https://github.com/advisories/GHSA-qffm-gf3j-6mvg)
- [OSV: GHSA-qffm-gf3j-6mvg](https://osv.dev/vulnerability/GHSA-qffm-gf3j-6mvg)
- <https://nvd.nist.gov/vuln/detail/CVE-2026-32588>
- <https://lists.apache.org/thread/2tnwjdnss378glxrsmnlzz3k53ftphrc>
- <http://www.openwall.com/lists/oss-security/2026/04/07/9>

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-qffm-gf3j-6mvg>, 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-qffm-gf3j-6mvg/>. Everything for agents: <https://agentprime.io/llms.txt>.