Vulnerability in MongoDB Inc. Mongoid
CVE-2026-93765
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.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
Affected products
- Mongodb Inc. Mongoid — versions 9.1.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-93765?
- CVE-2026-93765 is a critical-severity vulnerability in MongoDB Inc. Mongoid, classified under Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection). CVSS score: 9.1/10. Published 2026-09-18.
- How severe is CVE-2026-93765?
- Critical severity. CVSS v3 base score is 9.1 out of 10.