{"url":"http://public2.vulnerablecode.io/api/packages/203901?format=json","purl":"pkg:npm/engine.io-client@0.3.5","type":"npm","namespace":"","name":"engine.io-client","version":"0.3.5","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"1.6.9","latest_non_vulnerable_version":"1.6.9","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/38099?format=json","vulnerability_id":"VCID-j7pj-53sk-pbex","summary":"Insecure Defaults Allow MITM Over TLS\nThere's a flaw in the way that node.js handles the `rejectUnauthorized` setting. If the value is something that evaluates to false, certificate verification will be disabled. This is problematic as engine.io-client passes in an object for settings that includes the `rejectUnauthorized` property, whether it has been set or not. If the value has not been explicitly changed, it will be passed in as `null`, resulting in certificate verification being turned off.","references":[{"reference_url":"https://github.com/socketio/engine.io-client/commit/2c55b278a491bf45313ecc0825cf800e2f7ff5c1","reference_id":"","reference_type":"","scores":[],"url":"https://github.com/socketio/engine.io-client/commit/2c55b278a491bf45313ecc0825cf800e2f7ff5c1"},{"reference_url":"https://www.cigital.com/blog/node-js-socket-io/","reference_id":"","reference_type":"","scores":[],"url":"https://www.cigital.com/blog/node-js-socket-io/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/52665?format=json","purl":"pkg:npm/engine.io-client@1.6.9","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/engine.io-client@1.6.9"}],"aliases":["GMS-2016-31"],"risk_score":null,"exploitability":"0.5","weighted_severity":"0.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-j7pj-53sk-pbex"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/39676?format=json","vulnerability_id":"VCID-rucu-tmtk-duew","summary":"Improper Certificate Validation\n`engine.io-client` is the client for `engine.io`, the implementation of a transport-based `cross-browser/cross-device` bi-directional communication layer for `Socket.IO.` The vulnerability is related to the way that Node.js handles the `rejectUnauthorized` setting. If the value is something that evaluates to false, certificate verification will be disabled.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2016-10536","reference_id":"","reference_type":"","scores":[{"value":"0.00225","scoring_system":"epss","scoring_elements":"0.45287","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00225","scoring_system":"epss","scoring_elements":"0.45256","published_at":"2026-06-09T12:55:00Z"},{"value":"0.00225","scoring_system":"epss","scoring_elements":"0.45219","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00225","scoring_system":"epss","scoring_elements":"0.4527","published_at":"2026-06-07T12:55:00Z"},{"value":"0.00225","scoring_system":"epss","scoring_elements":"0.45243","published_at":"2026-06-08T12:55:00Z"},{"value":"0.00225","scoring_system":"epss","scoring_elements":"0.4529","published_at":"2026-06-06T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2016-10536"},{"reference_url":"https://github.com/advisories/GHSA-4r4m-hjwj-43p8","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-4r4m-hjwj-43p8"},{"reference_url":"https://github.com/socketio/engine.io-client/commit/2c55b278a491bf45313ecc0825cf800e2f7ff5c1","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/socketio/engine.io-client/commit/2c55b278a491bf45313ecc0825cf800e2f7ff5c1"},{"reference_url":"https://www.cigital.com/blog/node-js-socket-io","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.cigital.com/blog/node-js-socket-io"},{"reference_url":"https://www.cigital.com/blog/node-js-socket-io/","reference_id":"","reference_type":"","scores":[],"url":"https://www.cigital.com/blog/node-js-socket-io/"},{"reference_url":"https://www.npmjs.com/advisories/99","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.npmjs.com/advisories/99"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2016-10536","reference_id":"CVE-2016-10536","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-10536"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/52665?format=json","purl":"pkg:npm/engine.io-client@1.6.9","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/engine.io-client@1.6.9"}],"aliases":["CVE-2016-10536","GHSA-4r4m-hjwj-43p8"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-rucu-tmtk-duew"}],"fixing_vulnerabilities":[],"risk_score":"3.1","resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/engine.io-client@0.3.5"}