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Vulnerability record · CVE-2026-49875 · published 12 June 2026

CVE-2026-49875: Apache cxf xml external entity (xxe) vulnerability

Apache · Cxf

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.

9.8 CVSS 3.1 Critical EPSS 0.81% · top 44.9% CWE-611 · XML external entity (XXE)
9.8CVSS 3.1 base score
0.81%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References
7 Aug 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/3kb9w5bg90xcp06fccoz9k3gpsvyy79o Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/11/2 Mailing ListThird Party Advisory
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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-49875), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.