Bug 2512079 (CVE-2026-32327)

Summary: CVE-2026-32327 apr-util: Apache Portable Runtime Utility: Denial of Service via XML stack recursion attack
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: kshier, rhel-process-autobot, stcannon, teagle, watson-tool-maintainers, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Apache Portable Runtime Utility (apr-util). A remote attacker could exploit a stack recursion vulnerability by providing specially crafted XML input to a library consumer that uses the `apr_xml_quote_elem()` function. This could lead to a denial of service (DoS) due to an application crash.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2513051    
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Description OSIDB Bzimport 2026-08-06 14:41:53 UTC
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 theĀ apr_xml_quote_elem() function.

Users are recommended to upgrade to version 1.6.4, which fixes this issue.