How severe is CVE-2026-93763?

CVE-2026-93763 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-93763 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-93763?

CVE-2026-93763 primarily affects Mongodb Mongoid. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-93763?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-93763 published?

CVE-2026-93763 was published on 2026-09-18 and last updated on 2026-09-24.

CVE-2026-93763

CVE-2026-93763 is a medium-severity vulnerability in Mongodb Mongoid with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-312.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 7.1
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-312
Affected product: Mongodb Mongoid
Published: 2026-09-18
Last modified: 2026-09-24

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.

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.
How severe is CVE-2026-93763?: CVE-2026-93763 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-93763 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-93763?: CVE-2026-93763 primarily affects Mongodb Mongoid. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-93763?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-93763 published?: CVE-2026-93763 was published on 2026-09-18 and last updated on 2026-09-24.

References

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

Affected products (2)

cpe:2.3:a:mongodb:mongoid:*:*:*:*:*:*:*:*
cpe:2.3:a:mongodb:mongoid:9.1.0:*:*:*:*:*:*:*

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CVE-2026-93762 — Critical (CVSS 9.8): Mongoid contains an unsafe reflection weakness in the query path used for embedded documents. An application that…
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