High severity · published Aug 6, 2026
CVE-2026-65432
Apache CXF: XXE via WSDL/XSD import parsing
7.5
CVSS
0.7%
EPSS
No
On KEV
Description
Apache CXF reads a top-level WSDL through its hardened StaxUtils path, which disables XML DTDs and external entities. However, any <wsdl:import> or <xsd:import> referenced from that top-level WSDL is handed off to WSDL4J, which does not disable DOCTYPE declarations or external entities. As a result, the protections applied to the top-level document do not extend to imported documents, leaving imported WSDL/XSD content vulnerable to XML External Entity (XXE) attacks. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
Apache CXF · Apache Software Foundation
4.2.0 before 4.2.3; 4.0.0 before 4.1.8; before 3.6.12 · source: vendor
CX
Cxf · Apache
before 3.6.12; 4.0.0 before 4.1.8; 4.2.0 before 4.2.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-65432
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-65432
Mailing List
https://lists.apache.org/thread/5qs207krzg51jl3zs3cvnl5lt9njp8c3
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/08/06/17
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