# XML external entity injection in Terracotta Quartz Scheduler

Advisory record · `GHSA-9qcf-c26r-x5rf`

- **Identifiers:** `GHSA-9qcf-c26r-x5rf` · `CVE-2019-13990`
- **State:** Confirmed
- **Severity:** CVSS 9.8 Critical
- **Critical:** Yes: CVSS 9+, CVSS 7+ and EPSS
- **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:** 1 Jul 2020
- **Updated:** 15 Oct 2024
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 1 Jul 2020, 17:55 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- CVSS score 9.8: 9.0 or more.
- CVSS score 9.8 (7.0 or more) and EPSS 0.17 (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.quartz-scheduler:quartz` (Maven): affected `<2.3.2`; fixed in `2.3.2`

## Machine-written summary

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

> Quartz Scheduler (org.quartz-scheduler:quartz) versions before 2.3.2 are vulnerable to XML external entity (XXE) injection in the XML scheduling data processor, triggered through a job description. An attacker who can supply XML job data may be able to read local files or trigger server-side requests. Upgrade to version 2.3.2 or later.

Written 8 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.17, the 97th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:13 UTC: First seen by agentprime
- 31 Oct 2026, 15:13 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-9qcf-c26r-x5rf)

## Sources

- [GitHub Advisory Database: GHSA-9qcf-c26r-x5rf](https://github.com/advisories/GHSA-9qcf-c26r-x5rf)
- [OSV: GHSA-9qcf-c26r-x5rf](https://osv.dev/vulnerability/GHSA-9qcf-c26r-x5rf)
- <https://nvd.nist.gov/vuln/detail/CVE-2019-13990>
- <https://github.com/quartz-scheduler/quartz/issues/467>
- <https://github.com/quartz-scheduler/quartz/pull/501>
- <https://github.com/quartz-scheduler/quartz/commit/13c1d45aa1db15d0fa0e4997139c99ba219be551>
- <https://lists.apache.org/thread.html/r21df13c8bd2c2eae4b9661aae814c4a2a814d1f7875c765b8b115c9a@%3Ccommits.tomee.apache.org%3E>
- <https://lists.apache.org/thread.html/r3a6884e8d819f32cde8c07b98934de3e80467859880f784950bf44cf%40%3Ccommits.tomee.apache.org%3E>
- <https://lists.apache.org/thread.html/r3a6884e8d819f32cde8c07b98934de3e80467859880f784950bf44cf@%3Ccommits.tomee.apache.org%3E>
- <https://lists.apache.org/thread.html/re9b56ac1934d7bf16afc83eac1c39c98c1b20b4b15891dce923bf8aa%40%3Ccommits.tomee.apache.org%3E>
- <https://lists.apache.org/thread.html/re9b56ac1934d7bf16afc83eac1c39c98c1b20b4b15891dce923bf8aa@%3Ccommits.tomee.apache.org%3E>
- <https://security.netapp.com/advisory/ntap-20221028-0002>
- <https://snyk.io/vuln/SNYK-JAVA-ORGQUARTZSCHEDULER-461170>
- <https://www.oracle.com//security-alerts/cpujul2021.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-9qcf-c26r-x5rf>, 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-9qcf-c26r-x5rf/>. Everything for agents: <https://agentprime.io/llms.txt>.