{"id":"CVE-2026-34208","revision":"0742a37559a34c23b93156d54bdf692b","records":[{"revision":"0742a37559a34c23b93156d54bdf692b","observedAt":"2026-10-25T08:17:29.602+00:00","statement":{"source":"nvd","id":"CVE-2026-34208","aliases":[],"title":"SandboxJS is a JavaScript sandboxing library. Prior to 0.8.36, SandboxJS blocks direct assignment to global objects (for example Math.random = ...), but this protection can be bypassed through an exposed callable constructor path: this.cons…","description":"SandboxJS is a JavaScript sandboxing library. Prior to 0.8.36, SandboxJS blocks direct assignment to global objects (for example Math.random = ...), but this protection can be bypassed through an exposed callable constructor path: this.constructor.call(target, attackerObject). Because this.constructor resolves to the internal SandboxGlobal function and Function.prototype.call is allowed, attacker code can write arbitrary properties into host global objects and persist those mutations across sandbox instances in the same process. This vulnerability is fixed in 0.8.36.","state":0,"publishedAt":"2026-04-06T16:16:34.58+00:00","modifiedAt":"2026-06-17T10:38:39.237+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L","score":10,"severity":"CRITICAL"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10,"severity":"CRITICAL"}],"references":["https://github.com/nyariv/SandboxJS/security/advisories/GHSA-2gg9-6p7w-6cpj"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-34208","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-693","CWE-915"],"productCriteria":["cpe:2.3:a:nyariv:sandboxjs:*:*:*:*:*:node.js:*:*"],"sourceDates":{"published":"2026-04-06T16:16:34.580","lastModified":"2026-06-17T10:38:39.237"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-34208","identifiers":["CVE-2026-34208"]},"retained":false,"historicalAffected":[]}],"coverage":[]}