{"id":"CVE-2026-97711","summary":"Serialize JavaScript: Cross-site scripting (XSS) via unescaped \u003c/script\u003e in serialized function bodies","details":"Serialize JavaScript serializes JavaScript values to a superset of JSON that includes regular expressions and functions. From 7.1.1 until 7.1.2, function values serialized by serialize-javascript are not fully protected against script-closing tags in attacker-influenced function source because SCRIPT_CLOSE_REGEXP can consume a second closing tag inside one match. When the serialized function is embedded in a script element, the surviving closing tag terminates the element early and causes the remaining output to be parsed as HTML, enabling cross-site scripting in the page origin. Only function values are affected; ordinary data values and options.isJSON output are unaffected. This issue is fixed in version 7.1.2.","aliases":["GHSA-gfhx-hw2g-v5hg"],"modified":"2026-10-02T03:30:22.183590012Z","published":"2026-09-29T16:00:33.534Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97711.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-79"]},"references":[{"type":"WEB","url":"https://github.com/yahoo/serialize-javascript/releases/tag/v7.1.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97711.json"},{"type":"ADVISORY","url":"https://github.com/yahoo/serialize-javascript/security/advisories/GHSA-gfhx-hw2g-v5hg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97711"},{"type":"FIX","url":"https://github.com/yahoo/serialize-javascript/commit/2bdbaaff9cb8a4639135eb24cfcd383d3fefb534"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/yahoo/serialize-javascript","events":[{"introduced":"8c8caa7066a52106fa719c6abb5dc69858c9f799"},{"fixed":"2bdbaaff9cb8a4639135eb24cfcd383d3fefb534"},{"fixed":"6a73fa1ddcbe4bbee8bfb12fc1ad8c086cb1334b"}],"database_specific":{"extracted_events":[{"introduced":"7.1.1"},{"fixed":"7.1.2"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v7.1.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97711.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"}]}