# Improper Restriction of XML External Entity Reference in Apache POI

Advisory record · `GHSA-9jwc-q6j3-8g9g`

- **Identifiers:** `GHSA-9jwc-q6j3-8g9g` · `CVE-2019-12415`
- **State:** Confirmed
- **Severity:** CVSS 5.5 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-611](https://cwe.mitre.org/data/definitions/611.html)
- **Tags:** [XML external entities (XXE)](https://agentprime.io/advisories/tag/xxe.md)
- **Published:** 24 May 2022
- **Updated:** 8 Nov 2023
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 24 May 2022, 16:59 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.apache.poi:poi` (Maven): affected `<4.1.1`; fixed in `4.1.1`

## 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0100, the 63rd percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 24 May 2022. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-9jwc-q6j3-8g9g](https://github.com/advisories/GHSA-9jwc-q6j3-8g9g)
- [OSV: GHSA-9jwc-q6j3-8g9g](https://osv.dev/vulnerability/GHSA-9jwc-q6j3-8g9g)
- <https://nvd.nist.gov/vuln/detail/CVE-2019-12415>
- <https://github.com/apache/poi>
- <https://lists.apache.org/thread.html/13a54b6a03369cfb418a699180ffb83bd727320b6ddfec198b9b728e@%3Cannounce.apache.org%3E>
- <https://lists.apache.org/thread.html/2ac0327748de0c2b3c1c012481b79936797c711724e0b7da83cf564c@%3Cuser.tika.apache.org%3E>
- <https://lists.apache.org/thread.html/895164e03a3c327449069e2fd6ced0367561878b3ae6a8ec740c2007@%3Cuser.tika.apache.org%3E>
- <https://lists.apache.org/thread.html/d88b8823867033514d7ec05d66f88c70dc207604d3dcbd44fd88464c@%3Cuser.tika.apache.org%3E>
- <https://lists.apache.org/thread.html/r204ba2a9ea750f38d789d2bb429cc0925ad6133deea7cbc3001d96b5@%3Csolr-user.lucene.apache.org%3E>
- <https://www.oracle.com//security-alerts/cpujul2021.html>
- <https://www.oracle.com/security-alerts/cpuApr2021.html>
- <https://www.oracle.com/security-alerts/cpuapr2020.html>
- <https://www.oracle.com/security-alerts/cpujan2020.html>
- <https://www.oracle.com/security-alerts/cpujan2021.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-9jwc-q6j3-8g9g>, 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-9jwc-q6j3-8g9g/>. Everything for agents: <https://agentprime.io/llms.txt>.