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TI-2026-65409 Aliases CVE-2026-102496GHSA-jp7g-xv94-gfw8

Apache XMLSchema: Denial of service through deeply nested schema structures

Priority LOW 39CWE-674Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 1 fixed, 6 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-674.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00528 44th percentileScored 2026-11-07
Fix Partial Apache XMLSchema (Apache Software Foundation): 2.3.3Red Hat: 1 advisoryRed Hat: 1 fixed, 6 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache XMLSchemabefore 2.3.32.3.3Patch availableCNA
  • Apache XMLSchema VendorApache Affected before 2.3.3 Fixed in 2.3.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:xmlschema:*:*:*:*:*:*:*:*before 2.3.3VulnerableApache
  • cpe:2.3:a:apache:xmlschema:*:*:*:*:*:*:*:* Versions before 2.3.3 Vulnerable ·Apache

Remediation

  • Fix · CNA Apache XMLSchema (Apache Software Foundation) Fixed in 2.3.3

Red Hat 1 advisory

  • RHSA-2026:83670 Released 2026-10-15 · Red Hat rating Important
    Red Hat Build of Apache Camel 4.18 for Quarkus 3.33 update is now available (RHBQ 3.33.4.GA)
    • Red Hat Build of Apache Camel 3.33.4.redhat com.fasterxml.jackson.core.jackson-core-2.21.7.redhat-00001.jar, com.fasterxml.jackson.core.jackson-databind-2.21.7.redhat-00001.jar, io.micrometer.micrometer-core-1.16.7.redhat-00002.jar +14

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apache XMLSchema 2.3.3

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2026-65410 Apache XMLSchema: Denial of service through cyclic schema definitions in the schema walkerPriority LOW 39
    • TI-2026-65408 Apache XMLSchema: Denial of service through unbounded recursion when resolving schema imports and includesPriority LOW 39
    Show all 3 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat JBoss Enterprise Application Platform 7AffectedNo fix planned: Will not fix
Red Hat JBoss Enterprise Application Platform 8AffectedNo fix yet
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet
Red Hat Single Sign-On 7AffectedNo fix planned: Will not fix
Red Hat build of Apache Camel 4 for Quarkus 3AffectedNo fix yet
Red Hat build of Apache Camel for Spring Boot 4AffectedNo fix yet
Red Hat Build of Apache Camel 3.33.4.redhatFixed RHSA-2026:83670
Not affected: 4 products
  • Red Hat Build of Apache Camel 3.33.4.redhat
  • Red Hat Fuse 7
  • Red Hat JBoss Enterprise Application Platform Expansion Pack
  • Red Hat OpenShift AI (RHOAI)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-102496
  2. 2026-10-03 Alias added: GHSA-jp7g-xv94-gfw8
  3. 2026-10-06 Affected versions changed · Red Hat
  4. 2026-10-16 Affected versions changed · Red Hat
  5. 2026-11-06 Fix available: Red Hat Build of Apache Camel 3.33.4.redhat · Red Hat
  6. 2026-11-06 Fix available: RHSA-2026:83670 · Red Hat

References

Advisory 2

  • TI-2026-65410 Apache XMLSchema: Denial of service through cyclic schema definitions in the schema walker CVSS 3.1HIGH 7.5
  • TI-2026-65408 Apache XMLSchema: Denial of service through unbounded recursion when resolving schema imports and includes CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences