{"id":"CVE-2018-8039","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-8039","generatedAt":"2026-10-29T00:46:40.885Z","title":"It is possible to configure Apache CXF to use the com.sun.net.ssl implementation via 'System.setProperty(\"java.protocol.handler.pkgs\", \"com.sun.net.ssl.internal.www.protocol\");'.","description":"It is possible to configure Apache CXF to use the com.sun.net.ssl implementation via 'System.setProperty(\"java.protocol.handler.pkgs\", \"com.sun.net.ssl.internal.www.protocol\");'. When this system property is set, CXF uses some reflection to try to make the HostnameVerifier work with the old com.sun.net.ssl.HostnameVerifier interface. However, the default HostnameVerifier implementation in CXF does not implement the method in this interface, and an exception is thrown. However, in Apache CXF prior to 3.2.5 and 3.1.16 the exception is caught in the reflection code and not properly propagated. What this means is that if you are using the com.sun.net.ssl stack with CXF, an error with TLS hostname verification will not be thrown, leaving a CXF client subject to man-in-the-middle attacks.","published":"2018-07-02T13:29:00.000Z","lastModified":"2026-06-17T02:04:09.000Z","status":"Modified","sourceIdentifier":"security@apache.org","cvss":{"version":"3.0","score":8.1,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-755"],"affected":["apache/cxf","redhat/jboss enterprise application platform"],"epss":{"score":0.08507,"percentile":0.95013,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (8.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://cxf.apache.org/security-advisories.data/CVE-2018-8039.txt.asc?version=1&modificationDate=1530184663000&api=v2","tags":["Mailing List","Vendor Advisory"],"source":"security@apache.org"},{"url":"http://www.securityfocus.com/bid/106357","source":"security@apache.org"},{"url":"http://www.securitytracker.com/id/1041199","tags":["Third Party Advisory","VDB Entry"],"source":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:2276","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:2277","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:2279","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:2423","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:2424","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:2425","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:2428","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:2643","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:3768","source":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:3817","source":"security@apache.org"},{"url":"https://github.com/apache/cxf/commit/fae6fabf9bd7647f5e9cb68897a7d72b545b741b","tags":["Patch","Third Party Advisory"],"source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/1f8ff31df204ad0374ab26ad333169e0387a5e7ec92422f337431866%40%3Cdev.cxf.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r36e44ffc1a9b365327df62cdfaabe85b9a5637de102cea07d79b2dbf%40%3Ccommits.cxf.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rc774278135816e7afc943dc9fc78eb0764f2c84a2b96470a0187315c%40%3Ccommits.cxf.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rd49aabd984ed540c8ff7916d4d79405f3fa311d2fdbcf9ed307839a6%40%3Ccommits.cxf.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba71394f0d321e2d4%40%3Ccommits.cxf.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rfb87e0bf3995e7d560afeed750fac9329ff5f1ad49da365129b7f89e%40%3Ccommits.cxf.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rff42cfa5e7d75b7c1af0e37589140a8f1999e578a75738740b244bd4%40%3Ccommits.cxf.apache.org%3E","source":"security@apache.org"},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","source":"security@apache.org"},{"url":"https://www.oracle.com/security-alerts/cpujan2020.html","source":"security@apache.org"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html","source":"security@apache.org"},{"url":"http://cxf.apache.org/security-advisories.data/CVE-2018-8039.txt.asc?version=1&modificationDate=1530184663000&api=v2","tags":["Mailing List","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/106357","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1041199","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:2276","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:2277","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:2279","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:2423","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:2424","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:2425","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:2428","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:2643","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3768","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3817","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/apache/cxf/commit/fae6fabf9bd7647f5e9cb68897a7d72b545b741b","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/1f8ff31df204ad0374ab26ad333169e0387a5e7ec92422f337431866%40%3Cdev.cxf.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r36e44ffc1a9b365327df62cdfaabe85b9a5637de102cea07d79b2dbf%40%3Ccommits.cxf.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rc774278135816e7afc943dc9fc78eb0764f2c84a2b96470a0187315c%40%3Ccommits.cxf.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rd49aabd984ed540c8ff7916d4d79405f3fa311d2fdbcf9ed307839a6%40%3Ccommits.cxf.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba71394f0d321e2d4%40%3Ccommits.cxf.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rfb87e0bf3995e7d560afeed750fac9329ff5f1ad49da365129b7f89e%40%3Ccommits.cxf.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rff42cfa5e7d75b7c1af0e37589140a8f1999e578a75738740b244bd4%40%3Ccommits.cxf.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpujan2020.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-8039","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}