CVE-2026-32327
criticalpriority · track · 0EPSS 0.005 · 40 %ileDEEUNLUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.3–9.1
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (36)
Products and version ranges known to be affected.
advisories (4)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0444Kwetsbaarheden verholpen in Oracle CommunicationsNL2026-10-21csaf · ncsc_nlNL
Oracle heeft 110 kwetsbaarheden verholpen in diverse Oracle Communications-producten, waaronder Oracle Communications Unified Assurance, Oracle Communications Cloud Native Core Security Edge Protection Proxy, Oracle Communications Service Catalog and Design en Oracle Communications Operations Monitor.
- WID-SEC-W-2026-2697Apache Portable Runtime (APR): Mehrere SchwachstellenDeutsch2026-08-06csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apache Portable Runtime (APR) ausnutzen, um SQL-Injection durchzuführen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand auszulösen.
- WID-SEC-W-2026-4090Oracle Communications: Mehrere SchwachstellenDeutsch2026-10-20csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
- BIT-apr-util-2026-32327Apache Portable Runtime Utility: apr-util XML stack recursion crash2026-08-17vendor · osvUS
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.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2026/08/06/9cnnvd
- https://lists.apache.org/thread/hq27vj8yfno9tkwv0fpj6jksfzgxvth1cnnvd
- https://lists.apache.org/thread/hq27vj8yfno9tkwv0fpj6jksfzgxvth1enisa_euvd
- http://www.openwall.com/lists/oss-security/2026/08/06/9Mailing ListThird Party Advisorynvd
- https://lists.apache.org/thread/hq27vj8yfno9tkwv0fpj6jksfzgxvth1Mailing ListVendor Advisorynvd
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