{"id":"CVE-2026-42334","aliases":["BIT-mongoose-2026-42334","GHSA-wpg9-53fq-2r8h"],"url":"https://o3.security/vulnerability/CVE-2026-42334","summary":"Mongoose: Improper Sanitization of $nor in sanitizeFilter May Allow NoSQL Injection","details":"Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment. Prior to 6.13.9, 7.8.9, 8.22.1, and 9.1.6, a vulnerability allows bypassing Mongoose’s sanitizeFilter query sanitization mechanism via the $nor operator. When sanitizeFilter is enabled, Mongoose wraps query operators in $eq to neutralize them. However, prior to the fix, $nor was not included in the set of logical operators that are recursively sanitized. Because $nor accepts an array (like $and and $or), and arrays do not trigger hasDollarKeys(), malicious operators such as $ne, $gt, or $regex could be injected inside a $nor clause without being sanitized. This vulnerability is fixed in 6.13.9, 7.8.9, 8.22.1, and 9.1.6.","published":"2026-05-14T18:03:43.196Z","modified":"2026-07-15T01:49:16.683632179Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"mongoose","fixedVersion":"6.13.9"},{"ecosystem":"npm","name":"mongoose","fixedVersion":"7.8.9"},{"ecosystem":"npm","name":"mongoose","fixedVersion":"8.22.1"},{"ecosystem":"npm","name":"mongoose","fixedVersion":"9.1.6"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/Automattic/mongoose/security/advisories/GHSA-wpg9-53fq-2r8h"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42334.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42334"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:16.683632179Z"}}