{"id":"EUVD-2025-34678","revision":"8b8d43dc5fbb412c988695dd342ec363","records":[{"revision":"8b8d43dc5fbb412c988695dd342ec363","observedAt":"2026-11-07T03:27:59.071+00:00","statement":{"source":"euvd","id":"EUVD-2025-34678","aliases":["CVE-2025-62410","GHSA-qpm2-6cq5-7pq5"],"title":"In versions before 20.0.2, it was found that --disallow-code-generation-from-strings is not sufficient for isolating untrusted JavaScript in happy-dom. The untrusted script and the rest of the application still run in the same Isolate/proce…","description":"In versions before 20.0.2, it was found that --disallow-code-generation-from-strings is not sufficient for isolating untrusted JavaScript in happy-dom. The untrusted script and the rest of the application still run in the same Isolate/process, so attackers can deploy prototype pollution payloads to hijack important references like \"process\" in the example below, or to hijack control flow via flipping checks of undefined property. This vulnerability is due to an incomplete fix for CVE-2025-61927. The vulnerability is fixed in 20.0.2.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","score":9.4,"severity":null}],"references":["https://github.com/capricorn86/happy-dom/security/advisories/GHSA-qpm2-6cq5-7pq5","https://github.com/capricorn86/happy-dom/commit/f4bd4ebe3fe5abd2be2bcea1c07043c8b0b70eea"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-34678","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 15, 2025, 5:16:21 PM","dateUpdated":"Oct 15, 2025, 6:16:44 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2025-34678","identifiers":["EUVD-2025-34678","CVE-2025-62410","GHSA-qpm2-6cq5-7pq5"]},"retained":false,"historicalAffected":[]}],"coverage":[]}