Quick answers
- Is CVE-2026-93764 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-93764 being exploited in the wild.
- How severe is CVE-2026-93764?
- Medium severity, with a CVSS score of 6.5, published 18 September 2026.
- Which products and versions are affected?
- MongoDB Mongoid.
- Is there a fix for CVE-2026-93764?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-93764 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-93764?
- Check whether you run MongoDB Mongoid. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
Mongoid omits encryption rules for fields on embedded models when generating the client-side field-level encryption (CSFLE) schema, allowing plaintext storage of encrypted-intended data. The vulnerability affects applications that explicitly enable CSFLE, with no error or warning to alert users of the misconfiguration. An attacker with database read access, backup access, or file-level access to underlying data stores can retrieve unencrypted sensitive data.
Affected products
- MongoDB Mongoid
Timeline
- 2026-09-18: disclosed