Critical severity9.1NVD Advisory· Published Oct 10, 2019· Updated Jun 17, 2026
CVE-2019-17426
CVE-2019-17426
Description
Automattic Mongoose through 5.7.4 allows attackers to bypass access control (in some applications) because any query object with a _bsontype attribute is ignored. For example, adding "_bsontype":"a" can sometimes interfere with a query filter. NOTE: this CVE is about Mongoose's failure to work around this _bsontype special case that exists in older versions of the bson parser (aka the mongodb/js-bson project).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
mongoosenpm | >= 5.0.0, < 5.7.5 | 5.7.5 |
mongoosenpm | < 4.13.21 | 4.13.21 |
Affected products
3- Automattic/Mongoosedescription
Patches
Vulnerability mechanics
References
7- github.com/Automattic/mongoose/commit/f3eca5b94d822225c04e96cbeed9f095afb3c31cnvdPatchWEB
- github.com/Automattic/mongoose/issues/8222nvdThird Party AdvisoryWEB
- github.com/advisories/GHSA-8687-vv9j-hgphghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2019-17426ghsaADVISORY
- github.com/Automattic/mongoose/commit/f88eb2524b65a68ff893c90a03c04f0913c1913eghsaWEB
- github.com/Automattic/mongoose/commits/4.13.21ghsaWEB
- github.com/Automattic/mongoose/releases/tag/4.13.21ghsaWEB
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