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High 8.6Published Sep 18, 2026

CVE-2026-93759Server-side JavaScript injection via string query criteria bypassing the strict operator allowlist

Updated under an hour ago ()

Does this affect you?

It affects MongoDB Inc. Mongoid. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Mongoid does not neutralize a string-typed query criterion supplied to its query builder, and instead passes it to the database as a server-side JavaScript expression. An unauthenticated party able to influence the value an application supplies as a query argument may cause code of their choosing to be evaluated by the database engine. This may result in unintended disclosure of stored field values, unintended selection of documents for application-initiated writes, and reduced database performance.

CVSS
8.6 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Weakness (CWE)
CWE-94
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
mongodb
NVD analysis
Analyzed
Record last updated
Sep 21, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
MongoDB Inc. Mongoid
mongodb:mongoid (from the name)
9.1.0; from 9.0.0 through 9.0.11; from 8.1.0 through 8.1.12; from 8.0.0 through 8.0.12
CNA record
mongodb mongoid
mongodb:mongoid
from 8.0.0 before 8.0.13; from 8.1.0 before 8.1.13; from 9.0.0 before 9.0.12; 9.1.0
NVD

References

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The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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