What’s Vulnerable › Vulnerabilities
CVE-2026-93765: Document deletion and process crash via unvalidated method-name dispatch in atomic pop operation
- Severity: critical (CVSS 9.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-18 · updated 2026-09-25
- Weakness: CWE-470
Description
Mongoid contains an unsafe reflection weakness in the document persistence layer of its object-document mapping code. Input whose keys are passed through from an unauthenticated party by an embedding application can cause unintended internal method invocation instead of the intended array field update. This may result in unintended removal of stored records and in the embedding application becoming unresponsive.
Affected products
- MongoDB Inc. Mongoid: from 8.0.0 before 8.0.12; from 8.1.0 before 8.1.13; from 9.0.0 before 9.0.12; 9.1.0 — fixed in 8.0.12, 8.1.13, 9.0.12
How to fix
Upgrade to a fixed version: MongoDB Inc. Mongoid 8.0.12, 8.1.13, 9.0.12. Check the vendor advisory for mitigations.
References
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