{"id":"CVE-2026-59940","revision":"d8fce20f293d4f489344f860afbaf88f","records":[{"revision":"d8fce20f293d4f489344f860afbaf88f","observedAt":"2026-10-25T14:19:22.811+00:00","statement":{"source":"nvd","id":"CVE-2026-59940","aliases":[],"title":"Seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.5.3, seroval.fromJSON() allows attacker-controlled JSON Promise control nodes to operate on values from the general de…","description":"Seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.5.3, seroval.fromJSON() allows attacker-controlled JSON Promise control nodes to operate on values from the general deserialization reference table without verifying genuine internal Promise resolver records, causing deserialization side effects with plugins enabled and potentially unintended server-side invocation or remote code execution when downstream frameworks register callable wrappers. This issue is fixed in version 1.5.3.","state":0,"publishedAt":"2026-08-18T15:16:56.007+00:00","modifiedAt":"2026-10-22T22:10:00.25+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-mv8w-475r-vwqw"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-59940","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-502","CWE-843"],"productCriteria":[],"sourceDates":{"published":"2026-08-18T15:16:56.007","lastModified":"2026-10-22T22:10:00.250"},"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-2026-59940","identifiers":["CVE-2026-59940"]},"retained":false,"historicalAffected":[]}],"coverage":[]}