CVE-2026-93759 Mongoid - NoSQL Injection

Mongoid contains a nosql injection caused by unneutralized string-typed query criteria passed as server-side JavaScript expressions, letting unauthenticated attackers execute arbitrary code on the database, exploit requires attacker to control query arguments.

CVSS base score 8.6 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.43% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
NoSQL Injection
Impact
Remote Code Execution, Information Disclosure, Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Published
18 September 2026
Updated
15 October 2026
Weakness
CWE-94

Vendor fix

Update to the latest version of Mongoid that properly sanitizes query criteria.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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