{"id":"CVE-2026-17495","summary":"moment vulnerable to Path Traversal via crafted non-string locale name","details":"moment is a JavaScript date library for parsing, validating, manipulating, and formatting dates. In versions 2.29.2 through 2.30.1, a specially crafted non-string object passed to moment.locale() can bypass the locale-name path-traversal guard. The guard assumes the input is a string, so an object whose match() method satisfies the check while its toString() returns a traversal path reaches an internal require() call with attacker-controlled path segments. This is an incomplete fix for CVE-2022-24785 and primarily affects npm (server-side) users that pass user-provided input directly to moment.locale(). The issue is fixed in moment 2.31.0, and users should upgrade to 2.31.0 or later. As a workaround, validate that any user-supplied input is a string before passing it to moment.locale().","aliases":["GHSA-4p3w-j4w9-5jqw"],"modified":"2026-09-18T03:30:39.924420209Z","published":"2026-09-15T05:40:55.263Z","database_specific":{"cna_assigner":"openjs","cwe_ids":["CWE-27"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/17xxx/CVE-2026-17495.json","unresolved_ranges":[{"extracted_events":[{"introduced":"2.29.2"},{"fixed":"2.31.0"}],"source":"AFFECTED_FIELD"}]},"references":[{"type":"ADVISORY","url":"https://cna.openjsf.org/security-advisories.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/17xxx/CVE-2026-17495.json"},{"type":"ADVISORY","url":"https://github.com/moment/moment/security/advisories/GHSA-4p3w-j4w9-5jqw"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17495"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/moment/moment","events":[{"introduced":"75e2ac573e8cd62086a6bc6dc1b8d271e2804391"},{"fixed":"485d9a7d709bd5f3869a7ad24630cf0746d072dc"}],"database_specific":{"extracted_events":[{"introduced":"2.29.2"},{"fixed":"2.30.1"}],"source":"DESCRIPTION"}}],"versions":["2.30.0","2.29.4","2.29.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-17495.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}