{"id":"GHSA-66fc-rw6m-c2q6","summary":"Seroval affected by Denial of Service via Array serialization","details":"Overriding encoded array lengths by replacing them with an excessively large value causes the deserialization process to **significantly increase processing time**.  \n\n**Mitigation**:  \n`Seroval` no longer encodes array lengths.\nInstead, it computes length using `Array.prototype.length` during deserialization.","aliases":["CVE-2026-23957"],"modified":"2026-02-03T03:10:03.317259Z","published":"2026-01-21T17:05:54Z","database_specific":{"cwe_ids":["CWE-770"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-01-21T17:05:54Z","nvd_published_at":"2026-01-22T02:15:52Z"},"references":[{"type":"WEB","url":"https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-66fc-rw6m-c2q6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23957"},{"type":"WEB","url":"https://github.com/lxsmnsyc/seroval/commit/ce9408ebc87312fcad345a73c172212f2a798060"},{"type":"PACKAGE","url":"https://github.com/lxsmnsyc/seroval"}],"affected":[{"package":{"name":"seroval","ecosystem":"npm","purl":"pkg:npm/seroval"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.4.1"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 1.4.0","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-66fc-rw6m-c2q6/GHSA-66fc-rw6m-c2q6.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}