{"cve":"CVE-2026-23957","nvd":{"published":"2026-01-22T02:15:52.470","modified":"2026-06-17T10:22:21.077","status":"Analyzed","description":"seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0\nand below, overriding encoded array lengths by replacing them with an excessively large value causes the deserialization process to significantly increase processing time. This issue has been fixed in version 1.4.1.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-770"],"references":["https://github.com/lxsmnsyc/seroval/commit/ce9408ebc87312fcad345a73c172212f2a798060","https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-66fc-rw6m-c2q6"],"products":["lxsmnsyc:seroval"],"source":"nvd","synced_at":"2026-10-19T22:21:16.563232421+00:00"},"epss":{"cve":"CVE-2026-23957","score":0.00439,"percentile":0.38127,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-66fc-rw6m-c2q6","url":"https://osv.dev/vulnerability/GHSA-66fc-rw6m-c2q6","summary":"Seroval affected by Denial of Service via Array serialization","modified":"2026-02-03T03:10:03.317259Z","packages":[{"ecosystem":"npm","name":"seroval","purl":"pkg:npm/seroval","ranges":["<1.4.1"],"fixed":["1.4.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}