CVE-2026-32327

A bug in APR-util version 1.6.3 (and earlier) allows a stack recursion attack against any library consumer which parses XML from untrusted sources and uses the apr_xml_quote_elem() function. Users are recommended to upgrade to version 1.6.4, which fixes this issue.

Score

CVSS 3.1 9.1 Critical

Status

Analyzed - security@apache.org

Published

2026-08-06

Last modified

2026-10-24

Weaknesses

CWE-674

Affected products

• Apr-util (Apache)
• Apache Portable Runtime Utility (Apache Software Foundation)

References

• https://lists.apache.org/thread/hq27vj8yfno9tkwv0fpj6jksfzgxvth1
• http://www.openwall.com/lists/oss-security/2026/08/06/9