CVE-2026-93763: mongoid (CVSS 6.5)

Description

A protection mechanism failure in the object-document mapper's encryption configuration generation can cause fields that an application declared for client-side field-level encryption to be written and kept in cleartext, without any error or warning. A party holding ordinary read access to the database can then read values that were intended to be protected from that party. This may result in unintended disclosure of sensitive information.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0015

Probability of exploitation

0.04%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-312 CWE-312

Affected Products

Vendor	Product	Versions
mongodb	mongoid	9.0.0 — 9.0.12
mongodb	mongoid	All

References

Other References

https://jira.mongodb.org/browse/MONGOID-5984

Frequently Asked Questions

What is CVE-2026-93763? +

A protection mechanism failure in the object-document mapper's encryption configuration generation can cause fields that an application declared for client-side field-level encryption to be written and kept in cleartext, without any error or warning. A party holding ordinary read access to the database can then read values that were intended to be protected from that party. This may result in unintended disclosure of sensitive information. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-93763? +

CVE-2026-93763 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0015, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-93763? +

CVE-2026-93763 affects products from mongodb, specifically: mongoid. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-93763? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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