CVE-2026-93763 Silent plaintext persistence via unresolved callable database name in encryption schema map
An attacker with database read access can view sensitive data stored in plaintext due to a silent failure in the Mongoid library's encryption configuration.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-93763?
CVE-2026-93763 is a high-severity vulnerability in MongoDB Inc. Mongoid, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-312
Which versions are affected by CVE-2026-93763?
It affects 1 product.
Products include Mongodb Mongoid.
How do I fix CVE-2026-93763?
No fix has been published for CVE-2026-93763 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-93763 being exploited?
There is no known exploitation of CVE-2026-93763 in the wild and no public exploit code.
Other vulnerabilities in MongoDB Inc. Mongoid
- CVE-2026-93762 Data deletion and attribute disclosure via field-name method injection in in-memory queries
- CVE-2026-93759 Server-side JavaScript injection via string query criteria bypassing the strict operator allowlist
- CVE-2026-93761 Denial of service via unbounded regex matching in Mongoid's in-memory query matcher
- CVE-2026-93758 Cross-principal document update, theft, and deletion via unvalidated id in nested attributes
- CVE-2026-93760 NoSQL injection of JavaScript-executing query operators via unsafe-by-default operator guard
Sources
Also known as GHSA-5qw9-p5cj-5jx4.