CVE-2026-107938

criticalpriority · track · 0EPSS 0.002 · 9 %ileDEFRUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.19% (9th) EPSS

CVSS 9.1 · critical

Is it mine?

9 products

Check your exposure

Who says so?

3 sources

cert_bund · nvd · certfr

EPSS · scored 2026-10-27

In Apache CXF, the Netty-based HTTP client transport (cxf-rt-transports-http-netty-client) did not verify that the hostname in the server’s TLS certificate matched the host being called. This applied over both HTTP/1.1 and HTTP/2, even when disableCNCheck was left at its default value of false. The certificate chain was validated against the configured trust store, but the endpoint’s identity was not. A network attacker able to intercept traffic could present any certificate trusted by the client, such as a publicly issued certificate for a domain they control, and impersonate the target service. They could then read or modify the exchanged messages, including credentials. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.

cvss

Technical severity, 0–10. One row per scoring source.

9.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.3–9.1

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondaryexploitability 3.9 · impact 5.2

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-297US

affected products (9)

Products and version ranges known to be affected.

Apache Apache CXF <3.6.13< 3.6.13cert_bundDE
Apache Apache CXF <4.1.9< 4.1.9cert_bundDE
Apache Apache CXF <4.2.4< 4.2.4cert_bundDE
Apache CXF< 3.6.13cert_bundDE
Apache CXF< 4.1.9cert_bundDE
Apache CXF< 4.2.4cert_bundDE
apache cxf< 3.6.13nvdUScpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
apache cxf4.0.0 → 4.1.9nvdUScpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
apache cxf4.2.0 → 4.2.4nvdUScpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3824Apache CXF: Mehrere SchwachstellenDeutsch2026-10-08csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Apache CXF ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren und offenzulegen, Benutzer auf vom Angreifer kontrollierte Websites umzuleiten oder Denial-of-Service-Zustände auszulösen.
CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR

sources

Which sources assert this record, and when.

cert_bund nvd certfr NVD CVE.org MITRE

published 2026-10-09modified 2026-10-16

references (2) nvd

External citations — patches, advisories, analysis.

http://www.openwall.com/lists/oss-security/2026/10/09/13Mailing ListThird Party Advisory
https://lists.apache.org/thread.html/ljsjsq1foyjy1v5o22oncw80twx7k2tcIssue TrackingVendor Advisory

scry

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