CVE-2026-8201
Use-After-Free in MongoDB FLE Query Analysis When Processing Positional Projections on Encrypted Fields
Description
A use-after-free vulnerability exists in MongoDB's Field-Level Encryption (FLE) query analysis component, affecting client-side uses of mongocryptd and crypt_shared. Triggering this vulnerability requires control over the structure of a client's FLE-related query. This issue impacts MongoDB Server’s mongocryptd component v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.
INFO
Published Date :
May 13, 2026, 12:12 a.m.
Last Modified :
May 13, 2026, 12:12 a.m.
Remotely Exploit :
Yes !
Source :
mongodb
Affected Products
The following products are affected by CVE-2026-8201
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | a39b4221-9bd0-4244-95fc-f3e2e07f1deb | ||||
| CVSS 4.0 | MEDIUM | a39b4221-9bd0-4244-95fc-f3e2e07f1deb |
Solution
- Update to MongoDB Server v7.0.34 or later.
- Update to MongoDB Server v8.0.23 or later.
- Update to MongoDB Server v8.2.9 or later.
- Update to MongoDB Server v8.3.2 or later.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-8201 vulnerability anywhere in the article.