GHSA-4p3w-j4w9-5jqw

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GHSA-4p3w-j4w9-5jqw

Summary: moment vulnerable to Path Traversal via crafted non-string locale name

Details: ### Impact moment before 2.31.0 is vulnerable to path traversal in `moment.locale()`. When an application passes a non-string, attacker-influenced value to `moment.locale()`, a specially crafted object can bypass the locale name validation and cause moment to load a file from an attacker-controlled path. This is a further bypass of the validation added in 2.29.2 for [CVE-2022-24785](https://github.com/moment/moment/security/advisories/GHSA-8hfj-j24r-96c4). This affects server-side (npm) users only. Plain string input is not affected: the existing validation correctly rejects strings that contain path separators. ### Patches This issue is patched in moment 2.31.0. ### Workarounds Validate that any user-supplied input is a string before passing it to `moment.locale()`.

References: https://github.com/moment/moment/security/advisories/GHSA-4p3w-j4w9-5jqw, https://nvd.nist.gov/vuln/detail/CVE-2026-17495, https://github.com/moment/moment/pull/6386, https://github.com/moment/moment/commit/5f7d983c9881e65e07574de9dda3190d99520c07, https://cna.openjsf.org/security-advisories.html, https://github.com/moment/moment, https://github.com/moment/moment/releases/tag/2.31.0