CVE-2026-49875
Critical · CVSS 9.8Apache CXF — XML External Entity (XXE) injection via unsecured SAXParserFactory (CWE-611)
- CVSS
- 9.8
- nvd
- EPSS
- 0.53%
- 42th pct
- KEV
- No
- Class
- oss containerizable
- CWE-611, CWE-611
Description
Apache CXF's EndpointReferenceUtils and W3CMultiSchemaFactory classes construct a SAXParserFactory without the necessary JAXP hardening configurations, enabling out-of-band (OOB) external entity resolution. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fix this issue.
Search profile — drives PoC discovery
Symbols EndpointReferenceUtilsW3CMultiSchemaFactorySAXParserFactorySAXParserFactory without JAXP hardeningOOB external entity resolutionFEATURE_SECURE_PROCESSINGXMLConstants.FEATURE_SECURE_PROCESSING
Keywords CVE-2026-49875Apache CXF XXEApache CXF EndpointReferenceUtils XXEApache CXF W3CMultiSchemaFactory XXEApache CXF SAXParserFactory JAXP hardeningApache CXF OOB external entityApache CXF 4.2.2Apache CXF 4.1.7CXF XXE proof of conceptCXF external entity injection PoC
Versions: < 4.1.7, < 4.2.2 (fixed in 4.1.7 and 4.2.2)
References
- https://lists.apache.org/thread/3kb9w5bg90xcp06fccoz9k3gpsvyy79o
- http://www.openwall.com/lists/oss-security/2026/06/11/2
- https://access.redhat.com/errata/RHSA-2026:36839
- https://access.redhat.com/errata/RHSA-2026:37390
- https://access.redhat.com/security/cve/CVE-2026-49875
- https://bugzilla.redhat.com/show_bug.cgi?id=2488309
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49875.json
Status: enriched · ingested 2026-06-15T18:00:58.000Z · profiled 2026-06-16T18:20:23.035Z