Advisory severityUnratedApache Software Foundation Updated

Advisory [CVE-2026-100227] Improper Verification of Cryptographic Signature vulnerability in Apache CXF's JAX-RS XML Security module

This security Apache Software Foundation advisory covers CVE-2026-100227 affecting Apache CXF.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-100227 Source published Oct 9, 2026Source updated Oct 9, 2026

VulniPulse record published Oct 9, 2026Record updated Oct 9, 2026

CVE-2026-100227

Affected products & platforms

Apache Software FoundationUnclassified

Open source advisory

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Summary

Improper Verification of Cryptographic Signature vulnerability in Apache CXF's JAX-RS XML Security module. The JAX-RS XML Signature interceptors (XmlSigInHandler, XmlSigInInterceptor and the streaming XmlSecInInterceptor) did not ensure that the XML passed to the application was covered by the signature.

An attacker with any document signed by a trusted key could wrap it in unsigned content, which the application would then treat as signed. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.

Affected versions

Apache CXF 4.2.0 before 4.2.4
Apache CXF 4.0.0 before 4.1.9
Apache CXF before 3.6.13

Official advisory · medium-confidence parse· fetched 16 hours ago·verify at source

Fixed versions

4.2.4
4.1.9
3.6.13

Official advisory · medium-confidence parse· fetched 16 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.

Official advisory · medium-confidence parse· fetched 16 hours ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Apache Software Foundation
CVE.org CNA recordCVE.org
Independent CNA record used for near-real-time discovery and missed-CVE reconciliation. Discovered from the machine-readable feed https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/delta.json; this link opens the CVE.org record for CVE-2026-100227 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-100227NVD CVE.org MITRE

Official resources

ASF Security — reporting & CVE process
Official documentation
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Apache project downloads (fixed releases)
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