# Apache Tomcat - Fix for CVE-2023-24998 was incomplete

Advisory record · `GHSA-cx6h-86xw-9x34`

- **Identifiers:** `GHSA-cx6h-86xw-9x34` · `BIT-tomcat-2023-28709` · `CVE-2023-28709`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** Yes: CVSS 7+ and EPSS
- **Weakness (CWE):** [CWE-193](https://cwe.mitre.org/data/definitions/193.html)
- **Tags:** [CWE-193](https://agentprime.io/advisories/tag/cwe-193.md)
- **Published:** 6 Jul 2023
- **Updated:** 24 Mar 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 6 Jul 2023, 21:14 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- CVSS score 7.5 (7.0 or more) and EPSS 0.48 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected packages

- `org.apache.tomcat.embed:tomcat-embed-core` (Maven): affected `>=11.0.0-M2, <11.0.0-M5 || >=10.1.5, <10.1.8 || >=9.0.71, <9.0.74`; fixed in `11.0.0-M5`, `10.1.8`, `9.0.74`
- `org.apache.tomcat:tomcat-coyote` (Maven): affected `>=8.5.85, <8.5.88`; fixed in `8.5.88`

## 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.48, the 98th percentile, on 5 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-cx6h-86xw-9x34)

## Sources

- [GitHub Advisory Database: GHSA-cx6h-86xw-9x34](https://github.com/advisories/GHSA-cx6h-86xw-9x34)
- [OSV: GHSA-cx6h-86xw-9x34](https://osv.dev/vulnerability/GHSA-cx6h-86xw-9x34)
- <https://nvd.nist.gov/vuln/detail/CVE-2023-28709>
- <https://github.com/apache/tomcat/commit/5badf94e79e5de206fc0ef3054fd536b1bb787cd>
- <https://github.com/apache/tomcat/commit/ba848da71c523d94950d3c53c19ea155189df9dc>
- <https://github.com/apache/tomcat/commit/d53d8e7f77042cc32a3b98f589496a1ef5088e38>
- <https://github.com/apache/tomcat/commit/fbd81421629afe8b8a3922d59020cde81caea861>
- <https://github.com/apache/tomcat>
- <https://lists.apache.org/thread/7wvxonzwb7k9hx9jt3q33cmy7j97jo3j>
- <https://security.gentoo.org/glsa/202305-37>
- <https://security.netapp.com/advisory/ntap-20230616-0004>
- <https://tomcat.apache.org/security-10.html>
- <https://tomcat.apache.org/security-11.html>
- <https://tomcat.apache.org/security-8.html>

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-cx6h-86xw-9x34>, 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-cx6h-86xw-9x34/>. Everything for agents: <https://agentprime.io/llms.txt>.