{"id":"EUVD-2026-112468","revision":"7a7f7024453340c991e76639730ed17d","records":[{"revision":"7a7f7024453340c991e76639730ed17d","observedAt":"2026-11-01T23:03:41.728+00:00","statement":{"source":"euvd","id":"EUVD-2026-112468","aliases":["CVE-2026-118661","GHSA-5fpq-26gf-qwcr"],"title":"Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. Prior to 20.14.6, Happy DOM's CookieContainer in src/cookie/CookieContainer.ts does not correctly validate or match Domain cookie attributes. It…","description":"Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. Prior to 20.14.6, Happy DOM's CookieContainer in src/cookie/CookieContainer.ts does not correctly validate or match Domain cookie attributes. It can accept a Domain unrelated to the origin setting the cookie, including a public suffix, and separately treats an unrelated suffix-sharing hostname as a match because cookieMatchesURL does not enforce a DNS-label boundary. In server-side rendering and prerendering applications that contact attacker-controlled origins and then make requests to a victim origin, these behaviors can plant and deliver a forged cookie, enabling cookie injection or session fixation. This issue is fixed in version 20.14.6.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","score":6.5,"severity":null}],"references":["https://github.com/capricorn86/happy-dom/security/advisories/GHSA-5fpq-26gf-qwcr","https://github.com/capricorn86/happy-dom/pull/2477","https://github.com/capricorn86/happy-dom/commit/f21dbd7d0a0c63cdd41954ba5d0f05def4e0f2b3","https://github.com/capricorn86/happy-dom/releases/tag/v20.14.6"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112468","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 28, 2026, 8:30:23 PM","dateUpdated":"Oct 28, 2026, 8:30:23 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-2026-112468","identifiers":["EUVD-2026-112468","CVE-2026-118661","GHSA-5fpq-26gf-qwcr"]},"retained":false,"historicalAffected":[]}],"coverage":[]}