Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') Affecting apr-util-odbc package, versions <0:1.6.1-23.el9_8.1


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.46% (38th percentile)

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  • Snyk IDSNYK-RHEL9-APRUTILODBC-19710462
  • published13 Sept 2026
  • disclosed6 Aug 2026

Introduced: 6 Aug 2026

CVE-2026-32327  (opens in a new tab)
CWE-776  (opens in a new tab)

How to fix?

Upgrade RHEL:9 apr-util-odbc to version 0:1.6.1-23.el9_8.1 or higher.
This issue was patched in RHSA-2026:66341.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apr-util-odbc package and not the apr-util-odbc package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1