Medium severity5.9NVD Advisory· Published Nov 17, 2017· Updated Jun 17, 2026
CVE-2017-1000209
CVE-2017-1000209
Description
The Java WebSocket client nv-websocket-client does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL/TLS servers via an arbitrary valid certificate.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
com.neovisionaries:nv-websocket-clientMaven | < 2.1 | 2.1 |
Affected products
2- cpe:2.3:a:nv-websocket-client_project:nv-websocket-client:*:*:*:*:*:*:*:*Range: <=2.2
Patches
Vulnerability mechanics
References
3- github.com/TakahikoKawasaki/nv-websocket-client/pull/107nvdThird Party AdvisoryWEB
- github.com/advisories/GHSA-4hxv-95rc-jqg7ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2017-1000209ghsaADVISORY
News mentions
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