CVE-2026-42334
Last modified
CVE-2026-42334 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mongoosejs | Mongoose | < 6.13.9 |
| Mongoosejs | Mongoose | >= 7.0.0, < 7.8.9 |
| Mongoosejs | Mongoose | >= 8.0.0, < 8.22.1 |
| Mongoosejs | Mongoose | >= 9.0.0, < 9.1.6 |
References
- https://github.com/Automattic/mongoose/security/advisories/GHSA-wpg9-53fq-2r8hMitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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