CVE-2026-32327
Apache Portable Runtime Utility: apr-util XML stack recursion crash
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.
INFO
Published Date :
Aug. 6, 2026, 3:16 p.m.
Last Modified :
Aug. 6, 2026, 3:46 p.m.
Remotely Exploit :
No
Source :
[email protected]
Solution
- Upgrade APR-util to version 1.6.4.
- Avoid parsing untrusted XML with older versions.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-32327.
| URL | Resource |
|---|---|
| https://lists.apache.org/thread/hq27vj8yfno9tkwv0fpj6jksfzgxvth1 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-32327 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-32327
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-32327 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-32327 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Aug. 06, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Apache Software Foundation', 'product': 'Apache Portable Runtime Utility', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '1.6.3'}], 'packageName': 'APR-util', 'defaultStatus': 'unaffected'}] Added 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. Added CWE CWE-674 Added Reference https://lists.apache.org/thread/hq27vj8yfno9tkwv0fpj6jksfzgxvth1