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CVE-2019-17426

9.1 · CRITICAL

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.

Published Oct 10, 2019EPSS 1.66%

Overview

CVE-2019-17426 is a critical-severity vulnerability. It was published on October 10, 2019 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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).

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/Automattic/mongoose/commit/f3eca5b94d822225c04e96cbeed9f095afb3c31cGitHubgithub.com/Automattic/mongoose/issues/8222GitHubgithub.com/Automattic/mongoose/commit/f3eca5b94d822225c04e96cbeed9f095afb3c31cGitHubgithub.com/Automattic/mongoose/issues/8222

How CyberStrike helps

Frequently asked questions

What is CVE-2019-17426?

CVE-2019-17426 is a critical-severity vulnerability. It was published on October 10, 2019 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2019-17426?

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-17426?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-17426?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-17426 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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