{"id":"CVE-2025-34146","revision":"4a6ceeef06a7470ebadf9eae38e7947c","records":[{"revision":"4a6ceeef06a7470ebadf9eae38e7947c","observedAt":"2026-10-25T02:24:48.187+00:00","statement":{"source":"nvd","id":"CVE-2025-34146","aliases":[],"title":"A prototype pollution vulnerability exists in @nyariv/sandboxjs versions <= 0.8.23, allowing attackers to inject arbitrary properties into Object.prototype via crafted JavaScript code. This can result in a denial-of-service (DoS) condition …","description":"A prototype pollution vulnerability exists in @nyariv/sandboxjs versions <= 0.8.23, allowing attackers to inject arbitrary properties into Object.prototype via crafted JavaScript code. This can result in a denial-of-service (DoS) condition or, under certain conditions, escape the sandboxed environment intended to restrict code execution. The vulnerability stems from insufficient prototype access checks in the sandbox’s executor logic, particularly in the handling of JavaScript function objects returned.","state":0,"publishedAt":"2025-07-31T15:15:36.26+00:00","modifiedAt":"2026-10-08T16:16:51.177+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · disclosure@vulncheck.com · Secondary","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":7,"severity":"HIGH"}],"references":["https://gist.github.com/Hagrid29/9df27829a491080f923c4f6b8518d7e3","https://github.com/nyariv/SandboxJS/issues/31","https://www.npmjs.com/package/@nyariv/sandboxjs","https://www.vulncheck.com/advisories/nyariv-sandboxjs-prototype-pollution-sandbox-escape-dos"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-34146","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-1321"],"productCriteria":[],"sourceDates":{"published":"2025-07-31T15:15:36.260","lastModified":"2026-10-08T16:16:51.177"},"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-2025-34146","identifiers":["CVE-2025-34146"]},"retained":false,"historicalAffected":[]}],"coverage":[]}