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6 vulnerabilities found for Apache XMLSchema by Apache Software Foundation
CVE-2026-102497 (GCVE-0-2026-102497)
Vulnerability from nvd – Published: 2026-09-29 11:34 – Updated: 2026-09-29 20:13
VLAI
EPSS
VEX
Title
Apache XMLSchema: Denial of service through cyclic schema definitions in the schema walker
Summary
The Apache XmlSchema walker (xmlschema-walker) doesn't detect cycles in type derivation, substitution groups, model groups or attribute groups. A malicious schema with such a cycle can make the walker recurse until the stack overflows, causing a denial of service.
Users are recommended to upgrade to version 2.3.3, which fixes this issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 20:13 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/1cj02tobjyhjqq723… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache XMLSchema |
Affected:
0 , < 2.3.3
(semver)
|
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CVE-2026-102496 (GCVE-0-2026-102496)
Vulnerability from nvd – Published: 2026-09-29 11:34 – Updated: 2026-09-29 20:12
VLAI
EPSS
VEX
Title
Apache XMLSchema: Denial of service through deeply nested schema structures
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 20:11 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/9z1vg8wmvwpfw748f… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache XMLSchema |
Affected:
0 , < 2.3.3
(semver)
|
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CVE-2026-102495 (GCVE-0-2026-102495)
Vulnerability from nvd – Published: 2026-09-29 11:33 – Updated: 2026-09-29 20:06
VLAI
EPSS
VEX
Title
Apache XMLSchema: Denial of service through unbounded recursion when resolving schema imports and includes
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 20:05 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/l339q3oldm0cd2lph… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache XMLSchema |
Affected:
0 , < 2.3.3
(semver)
|
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CVE-2026-102497 (GCVE-0-2026-102497)
Vulnerability from cvelistv5 – Published: 2026-09-29 11:34 – Updated: 2026-09-29 20:13
VLAI
EPSS
VEX
Title
Apache XMLSchema: Denial of service through cyclic schema definitions in the schema walker
Summary
The Apache XmlSchema walker (xmlschema-walker) doesn't detect cycles in type derivation, substitution groups, model groups or attribute groups. A malicious schema with such a cycle can make the walker recurse until the stack overflows, causing a denial of service.
Users are recommended to upgrade to version 2.3.3, which fixes this issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 20:13 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/1cj02tobjyhjqq723… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache XMLSchema |
Affected:
0 , < 2.3.3
(semver)
|
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CVE-2026-102496 (GCVE-0-2026-102496)
Vulnerability from cvelistv5 – Published: 2026-09-29 11:34 – Updated: 2026-09-29 20:12
VLAI
EPSS
VEX
Title
Apache XMLSchema: Denial of service through deeply nested schema structures
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 20:11 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/9z1vg8wmvwpfw748f… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache XMLSchema |
Affected:
0 , < 2.3.3
(semver)
|
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CVE-2026-102495 (GCVE-0-2026-102495)
Vulnerability from cvelistv5 – Published: 2026-09-29 11:33 – Updated: 2026-09-29 20:06
VLAI
EPSS
VEX
Title
Apache XMLSchema: Denial of service through unbounded recursion when resolving schema imports and includes
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 20:05 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/l339q3oldm0cd2lph… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache XMLSchema |
Affected:
0 , < 2.3.3
(semver)
|
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