Bug 2543083 (CVE-2026-102495) - CVE-2026-102495 org.apache.ws.xmlschema/xmlschema-core: Apache XMLSchema: Denial of Service via unbounded recursion during schema parsing
Summary: CVE-2026-102495 org.apache.ws.xmlschema/xmlschema-core: Apache XMLSchema: Den...
Keywords:
Status: NEW
Alias: CVE-2026-102495
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-29 11:52 UTC by OSIDB Bzimport
Modified: 2026-10-15 23:25 UTC (History)
39 users (show)

Fixed In Version:
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:83670 0 None None None 2026-10-15 23:25:58 UTC

Description OSIDB Bzimport 2026-09-29 11:52:27 UTC 
Apache XmlSchema doesn't limit how deeply schema imports and includes can be nested, so a malicious schema can make parsing recurse until the stack overflows. This causes a denial of service.
Users are recommended to upgrade to version 2.3.3, which fixes this issue.
Comment 1 Jon Orris 2026-10-15 23:25:56 UTC 
This issue has been addressed in the following products:

  Red Hat Build of Apache Camel 4.18 for Quarkus 3.33

Via RHSA-2026:83670 https://access.redhat.com/errata/RHSA-2026:83670
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