CVE-2026-102496

Apache XmlSchema doesn't limit how deeply schema structures can be nested when it builds its schema model, 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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://lists.apache.org/thread/9z1vg8wmvwpfw748fb2nb55w4hgbnxol	Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/09/29/16	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:xmlschema:*:*:*:*:*:*:*:*

History

06 Oct 2026, 14:38

Type	Values Removed	Values Added
CPE		cpe:2.3:a:apache:xmlschema::::::::
References	~~() https://lists.apache.org/thread/9z1vg8wmvwpfw748fb2nb55w4hgbnxol -~~	() https://lists.apache.org/thread/9z1vg8wmvwpfw748fb2nb55w4hgbnxol - Mailing List, Vendor Advisory
References	~~() http://www.openwall.com/lists/oss-security/2026/09/29/16 -~~	() http://www.openwall.com/lists/oss-security/2026/09/29/16 - Mailing List, Third Party Advisory
First Time		Apache Apache xmlschema

29 Sep 2026, 21:17

Type	Values Removed	Values Added
CWE		CWE-674
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

29 Sep 2026, 13:17

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/09/29/16 -

29 Sep 2026, 12:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-29 12:17

Updated : 2026-10-06 14:38

NVD link : CVE-2026-102496

Mitre link : CVE-2026-102496

CVE.ORG link : CVE-2026-102496

JSON object : View

Products Affected

apache

xmlschema

CWE

CWE-674

Uncontrolled Recursion

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