How severe is CVE-2026-49875?

CVE-2026-49875 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-49875 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-49875?

CVE-2026-49875 affects Apache Cxf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-49875?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-49875 have an EU (EUVD) identifier?

Yes. CVE-2026-49875 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36394.

When was CVE-2026-49875 published?

CVE-2026-49875 was published on 2026-06-12 and last updated on 2026-06-30.

CVE-2026-49875

CVE-2026-49875 is a critical-severity vulnerability in Apache Cxf with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-611.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36394
Weakness: CWE-611
Affected product: Apache Cxf
Published: 2026-06-12
Last modified: 2026-06-30

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, which fix this issue.

Frequently asked questions

What is CVE-2026-49875?: 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, which fix this issue.
How severe is CVE-2026-49875?: CVE-2026-49875 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-49875 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-49875?: CVE-2026-49875 affects Apache Cxf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-49875?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-49875 have an EU (EUVD) identifier?: Yes. CVE-2026-49875 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36394.
When was CVE-2026-49875 published?: CVE-2026-49875 was published on 2026-06-12 and last updated on 2026-06-30.

References

Affected products (1)

cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*

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