CVE-2026-32327 Apache Portable Runtime Utility: apr-util XML stack recursion crash
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-32327?
CVE-2026-32327 is a critical vulnerability in Apache Portable Runtime Utility, published on 6 Aug 2026.
Official description
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.
Weakness: CWE-674
Which versions are affected by CVE-2026-32327?
1 open source package ship an affected version, including apr-util. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
apr-util Bitnami | All versions | 1.6.4 |
Products include Apache Apr-Util.
How do I fix CVE-2026-32327?
Upgrade apr-util to 1.6.4 or later.
Is CVE-2026-32327 being exploited?
There is no known exploitation of CVE-2026-32327 in the wild and no public exploit code.
Other vulnerabilities in Apache Portable Runtime Utility
- CVE-2009-2412 Integer overflow in n/a
- CVE-2026-34191 Apache Portable Runtime Utility: SQL Injection in apr_dbd_oracle
- CVE-2025-49506 Apache Portable Runtime Utility: apr_password_validate() vulnerable to timing attack
- CVE-2026-34501 Apache Portable Runtime Utility: Heap buffer overflow in APR redis client
- CVE-2026-34502 Apache Portable Runtime Utility: Heap buffer overflow in APR memcached client
Sources
Also known as ALPINE-CVE-2026-32327, AZL-94514, BELL-CVE-2026-32327, BIT-apr-util-2026-32327, CLSA-2026-1792441215, DEBIAN-CVE-2026-32327 and 3 more.