mongoid vulnerabilities and fixes

Recent CVEs affecting mongoid, with upgrade or downgrade steps. 8 tracked.

mongoid has 8 tracked vulnerabilities, 2 critical. A fixed release or vendor patch exists for 8. Most recent: 2026-09-18. Highest priority: CVE-2026-93762 (score 51/100).

• CVE-2026-93758 HIGH 8.1 UPGRADE An insecure direct object reference in the nested attributes handling of the Mongoid object-document mapper ma
• CVE-2026-93765 CRITICAL 9.1 UPGRADE Mongoid contains an unsafe reflection weakness in the document persistence layer of its object-document mappin
• CVE-2026-93759 HIGH 8.6 UPGRADE Mongoid does not neutralize a string-typed query criterion supplied to its query builder, and instead passes i
• CVE-2026-93760 HIGH 8.2 UPGRADE Mongoid does not restrict which query operators may come from caller-supplied filter data when an application
• CVE-2026-93761 HIGH 7.5 UPGRADE An inefficient regular expression complexity issue in the in-memory query evaluation component of the Mongoid
• CVE-2026-93762 CRITICAL 9.8 UPGRADE Mongoid contains an unsafe reflection weakness in the query path used for embedded documents
• CVE-2026-93763 MEDIUM 6.5 UPGRADE A protection mechanism failure in the object-document mapper's encryption configuration generation can cause f
• CVE-2026-93764 MEDIUM 6.5 UPGRADE Mongoid may omit encryption rules for fields declared on embedded models when generating the client-side field

FAQ

How do I fix mongoid vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is mongoid being exploited right now?

None of the tracked mongoid CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which mongoid CVE should I patch first?

CVE-2026-93762 currently ranks highest (51/100): Mongoid contains an unsafe reflection weakness in the query path used for embedded documents.

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