# CERT-FR Flags Multiple MongoDB Driver Flaws

Published: 2026-10-26 · Severity: routine · Sectors: Technology
Canonical: https://vorant.io/reports/b30dd42f-c9a4-5c38-bd68-71fe25690a33/cert-fr-flags-multiple-mongodb-driver-flaws

> CERT-FR advisory details multiple vulnerabilities in MongoDB C/C# drivers, Compass, and libmongocrypt allowing RCE, data compromise, and DoS.

CERT-FR published an advisory consolidating multiple vulnerabilities affecting several MongoDB client-side components: the C Driver (versions 2.5.x prior to 2.5.7 and versions prior to 1.30.14), the C# Driver (prior to 3.13.0), MongoDB Compass (prior to 1.53.1), and libmongocrypt (prior to 1.21.1). The flaws collectively allow an attacker to achieve arbitrary code execution, compromise data confidentiality and integrity, bypass security policies, cause denial of service, perform CSRF-style illegitimate request injection, and conduct SQL injection, depending on the specific component and vulnerability.

The advisory references 14 CVEs (CVE-2026-114643 through CVE-2026-114655, plus CVE-2026-115929) tied to individual MongoDB JIRA security bulletins (CDRIVER-6421, several CSHARP tickets, MONGOCRYPT-963) published around October 22-24, 2026. No detail is given on exploitation status; the advisory is a standard vulnerability notification rather than evidence of active exploitation.

Defenders running applications that embed the affected MongoDB drivers or tools should prioritize upgrading to the patched versions referenced in the vendor bulletins: C Driver 2.5.7+/1.30.14+, C# Driver 3.13.0+, Compass 1.53.1+, and libmongocrypt 1.21.1+. Given the range of impacts including RCE, this should be treated as a routine but important patching cycle for any environment using these client libraries.

## Mentioned in this report

- Vulnerabilities: CVE-2026-114643, CVE-2026-114644, CVE-2026-114645, CVE-2026-114646, CVE-2026-114647, CVE-2026-114648, CVE-2026-114649, CVE-2026-114650, CVE-2026-114651, CVE-2026-114652, CVE-2026-114653, CVE-2026-114654, CVE-2026-114655, CVE-2026-115929

Source reporting: https://www.cert.cyber.gouv.fr/avis/CERTFR-2026-AVI-1386

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