{"id":"CVE-2026-116582","revision":"3b41832ab75449858dac73ed304c62d9","records":[{"revision":"3b41832ab75449858dac73ed304c62d9","observedAt":"2026-10-28T21:57:06.789+00:00","statement":{"source":"nvd","id":"CVE-2026-116582","aliases":[],"title":"Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.0.0 and from 1.5.5 until 1.6.10, the JavaScript-output APIs serialize a RegExp source containing a less-than c…","description":"Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.0.0 and from 1.5.5 until 1.6.10, the JavaScript-output APIs serialize a RegExp source containing a less-than character without the escaping needed for an HTML script element. An application is affected when it builds regular expression syntax from untrusted input, serializes that RegExp through serialize, serializeAsync, crossSerialize, crossSerializeAsync, crossSerializeStream, Serializer, or compileJSON, and embeds the result in an HTML script element. The crafted source can terminate the element and execute script in the page received by another user. This issue is fixed in version 1.6.10.","state":0,"publishedAt":"2026-10-26T21:18:16.267+00:00","modifiedAt":"2026-10-26T21:18:16.613+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","score":4.7,"severity":"MEDIUM"}],"references":["https://github.com/lxsmnsyc/seroval/commit/f94ee0b63936dae954ff50d5b5e8ea7cb9b284e6","https://github.com/lxsmnsyc/seroval/releases/tag/seroval@1.6.10","https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-9wx9-5pv9-3349"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-116582","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-79","CWE-116"],"productCriteria":[],"sourceDates":{"published":"2026-10-26T21:18:16.267","lastModified":"2026-10-26T21:18:16.613"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-116582","identifiers":["CVE-2026-116582"]},"retained":false,"historicalAffected":[]}],"coverage":[]}