{"id":"CVE-2026-27119","aliases":["EUVD-2026-7510","GHSA-h7h7-mm68-gmrc"],"status":"published","title":"Svelte affected by XSS in SSR `\u003coption\u003e` element","description":"svelte performance oriented web framework. From 5.39.3, \u003c=5.51.4, in certain circumstances, the server-side rendering output of an \u003coption\u003e 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.","severity":{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00211,"percentile":0.11399,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2026-02-19T15:18:19Z","modified":"2026-10-28T02:31:05Z","fixes":[{"ecosystem":"npm","package":"svelte","fixed_in":["5.51.5"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"svelte","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.39.3"},{"fixed":"5.51.5"}]}]},{"source":"osv","ecosystem":"npm","package":"svelte","ranges":[{"type":"SEMVER","events":[{"introduced":"5.39.3"},{"fixed":"5.51.5"}]}]}],"products":[{"vendor":"svelte","product":"svelte"},{"vendor":"sveltejs","product":"svelte"}],"references":[{"url":"https://github.com/sveltejs/svelte/security/advisories/GHSA-h7h7-mm68-gmrc","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27119","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-h7h7-mm68-gmrc"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27119.json","tags":["advisory"]},{"url":"https://github.com/sveltejs/svelte","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-27119","title":"Svelte affected by XSS in SSR `\u003coption\u003e` element","description":"svelte performance oriented web framework. From 5.39.3, \u003c=5.51.4, in certain circumstances, the server-side rendering output of an \u003coption\u003e 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.","status":"published","published":"2026-02-20T22:25:42.794Z","modified":"2026-02-23T19:42:58.32Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:19:49.199185Z"}],"euvd":[{"id":"EUVD-2026-7510","description":"svelte performance oriented web framework. From 5.39.3, \u003c=5.51.4, in certain circumstances, the server-side rendering output of an \u003coption\u003e 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.","status":"published","published":"2026-02-20T22:25:42Z","modified":"2026-02-23T19:42:58Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:48:32.158773Z"}],"ghsa":[{"id":"GHSA-h7h7-mm68-gmrc","title":"Svelte affected by XSS in SSR `\u003coption\u003e` element","description":"In certain circumstances, the server-side rendering output of an `\u003coption\u003e` element does not properly escape its content, potentially allowing HTML injection in the SSR output. Client-side rendering is not affected.","status":"published","published":"2026-02-19T15:18:19Z","modified":"2026-02-23T22:22:10Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:39:26.881079Z"}],"nvd":[{"id":"CVE-2026-27119","description":"svelte performance oriented web framework. From 5.39.3, \u003c=5.51.4, in certain circumstances, the server-side rendering output of an \u003coption\u003e 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.","status":"published","published":"2026-02-20T23:16:02.36Z","modified":"2026-06-17T10:26:42.067Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/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","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:06.63895Z"}],"osv":[{"id":"CVE-2026-27119","title":"Svelte affected by XSS in SSR `\u003coption\u003e` element","description":"svelte performance oriented web framework. From 5.39.3, \u003c=5.51.4, in certain circumstances, the server-side rendering output of an \u003coption\u003e 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.","status":"published","published":"2026-02-20T22:25:42.794Z","modified":"2026-10-28T02:31:05.368979632Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:59.80315Z"},{"id":"GHSA-h7h7-mm68-gmrc","title":"Svelte affected by XSS in SSR `\u003coption\u003e` element","description":"In certain circumstances, the server-side rendering output of an `\u003coption\u003e` element does not properly escape its content, potentially allowing HTML injection in the SSR output. Client-side rendering is not affected.","status":"published","published":"2026-02-19T15:18:19Z","modified":"2026-02-23T22:48:04.189023Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:48.920784Z"}]}}