{"id":"CVE-2026-27119","aliases":["GHSA-h7h7-mm68-gmrc"],"url":"https://o3.security/vulnerability/CVE-2026-27119","summary":"Svelte affected by XSS in SSR `<option>` element","details":"svelte performance oriented web framework. From 5.39.3, <=5.51.4, in certain circumstances, the server-side rendering output of an <option> element does not properly escape its content, potentially allowing HTML injection in the SSR output. Client-side rendering is not affected. This vulnerability is fixed in 5.51.5.","published":"2026-02-20T22:25:42.794Z","modified":"2026-08-12T03:51:19.028751343Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"svelte","fixedVersion":"5.51.5"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27119.json"},{"type":"ADVISORY","url":"https://github.com/sveltejs/svelte/security/advisories/GHSA-h7h7-mm68-gmrc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27119"},{"type":"PACKAGE","url":"https://github.com/sveltejs/svelte"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:19.028751343Z"}}