{"cve":"CVE-2016-2166","nvd":{"published":"2016-04-12T14:59:11.183","modified":"2026-06-17T00:43:34.187","status":"Modified","description":"The (1) proton.reactor.Connector, (2) proton.reactor.Container, and (3) proton.utils.BlockingConnection classes in Apache Qpid Proton before 0.12.1 improperly use an unencrypted connection for an amqps URI scheme when SSL support is unavailable, which might allow man-in-the-middle attackers to obtain sensitive information or modify data via unspecified vectors.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N","score":6.5},"cwes":["CWE-200"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182414.html","http://packetstormsecurity.com/files/136403/Apache-Qpid-Proton-0.12.0-SSL-Failure.html","http://qpid.apache.org/releases/qpid-proton-0.12.1/release-notes.html","http://www.securityfocus.com/archive/1/537864/100/0/threaded","https://git-wip-us.apache.org/repos/asf?p=qpid-proton.git%3Bh=a058585"],"products":["apache:qpid_proton","fedoraproject:fedora"],"source":"nvd","synced_at":"2026-10-19T20:37:48.328043465+00:00"},"epss":{"cve":"CVE-2016-2166","score":0.04267,"percentile":0.91086,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-f5cf-f7px-xpmh","url":"https://osv.dev/vulnerability/GHSA-f5cf-f7px-xpmh","summary":"Moderate severity vulnerability that affects org.apache.qpid:proton-j","modified":"2023-11-08T03:58:23.916791Z","packages":[{"ecosystem":"Maven","name":"org.apache.qpid:proton-j","purl":"pkg:maven/org.apache.qpid/proton-j","ranges":["<0.12.1"],"fixed":["0.12.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}