# MongoDB Libmongocrypt vulnerabilities Source: https://junglewise.ai/threats/technologies/libmongocrypt Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/libmongocrypt.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 6 vulnerabilities in MongoDB Libmongocrypt: 1 in the last 7 days and 6 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-126792, was published on 13 November 2026. 1 vulnerability in the last four weeks, level on the four before (1). ## Counts - Last 7 days: 1 - Last 30 days: 2 - Last 90 days: 6 - All time: 6 (0 critical, 0 exploited in the wild) ## About MongoDB Libmongocrypt MongoDB library that handles client-side encryption and decryption for queryable encryption operations. ## Latest MongoDB Libmongocrypt vulnerabilities - [CVE-2026-126792: libmongocrypt out-of-bounds write in key-management request builder](https://junglewise.ai/threats/cve-2026-126792-a-memory-safety-flaw-in-the-key-management-request-building) (medium, CVSS 4.7, published 13 Nov 2026) - [CVE-2026-114655: libmongocrypt KMS request injection in key vault processing](https://junglewise.ai/threats/cve-2026-114655-libmongocrypt-builds-requests-to-external-key-management) (medium, CVSS 5.9, published 22 Oct 2026) - [CVE-2026-106433: MongoDB libmongocrypt state management memory corruption](https://junglewise.ai/threats/cve-2026-106433-improper-state-management-in-mongodb-libmongocrypt-can-cause) (high, CVSS 8.8, published 8 Oct 2026) - [CVE-2026-84962: MongoDB Crypt key vault privilege escalation to Google Cloud KMS](https://junglewise.ai/threats/cve-2026-84962-mongodb-crypt-key-vault-privilege-escalation-to-google-cloud-kms) (medium, CVSS 4.2, published 3 Sep 2026) - [CVE-2026-84971: MongoDB libmongocrypt denial of service via undersized encrypted payload](https://junglewise.ai/threats/cve-2026-84971-mongodb-libmongocrypt-denial-of-service-via-undersized-encrypted) (medium, CVSS 6.5, published 3 Sep 2026) - [CVE-2026-81523: MongoDB libmongocrypt input validation bypass in automatic encryption](https://junglewise.ai/threats/cve-2026-81523-mongodb-libmongocrypt-input-validation-bypass-in-automatic) (medium, CVSS 4.4, published 27 Aug 2026) ## Most severe MongoDB Libmongocrypt vulnerabilities - [CVE-2026-106433: MongoDB libmongocrypt state management memory corruption](https://junglewise.ai/threats/cve-2026-106433-improper-state-management-in-mongodb-libmongocrypt-can-cause) (high, CVSS 8.8, published 8 Oct 2026) - [CVE-2026-84971: MongoDB libmongocrypt denial of service via undersized encrypted payload](https://junglewise.ai/threats/cve-2026-84971-mongodb-libmongocrypt-denial-of-service-via-undersized-encrypted) (medium, CVSS 6.5, published 3 Sep 2026) - [CVE-2026-114655: libmongocrypt KMS request injection in key vault processing](https://junglewise.ai/threats/cve-2026-114655-libmongocrypt-builds-requests-to-external-key-management) (medium, CVSS 5.9, published 22 Oct 2026) - [CVE-2026-126792: libmongocrypt out-of-bounds write in key-management request builder](https://junglewise.ai/threats/cve-2026-126792-a-memory-safety-flaw-in-the-key-management-request-building) (medium, CVSS 4.7, published 13 Nov 2026) - [CVE-2026-81523: MongoDB libmongocrypt input validation bypass in automatic encryption](https://junglewise.ai/threats/cve-2026-81523-mongodb-libmongocrypt-input-validation-bypass-in-automatic) (medium, CVSS 4.4, published 27 Aug 2026) - [CVE-2026-84962: MongoDB Crypt key vault privilege escalation to Google Cloud KMS](https://junglewise.ai/threats/cve-2026-84962-mongodb-crypt-key-vault-privilege-escalation-to-google-cloud-kms) (medium, CVSS 4.2, published 3 Sep 2026) ## Vulnerabilities per week 1 vulnerability in the last four weeks, level on the four before (1). | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 1 | 0 | 0 | | 31 Aug 2026 | 2 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 1 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 1 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 1 | 0 | 0 | ## Other MongoDB technologies - [MongoDB Server](https://junglewise.ai/threats/technologies/mongodb-server): 86 vulnerabilities - [MongoDB C Driver](https://junglewise.ai/threats/technologies/c-driver): 41 vulnerabilities - [MongoDB](https://junglewise.ai/threats/technologies/mongodb): 25 vulnerabilities - [MongoDB Connector for BI](https://junglewise.ai/threats/technologies/connector-for-bi): 8 vulnerabilities - [MongoDB Bi Connector Odbc Driver](https://junglewise.ai/threats/technologies/bi-connector-odbc-driver): 7 vulnerabilities - [MongoDB Mongoid](https://junglewise.ai/threats/technologies/mongoid): 7 vulnerabilities - [MongoDB PHP Driver](https://junglewise.ai/threats/technologies/php-driver): 7 vulnerabilities - [MongoDB Compass](https://junglewise.ai/threats/technologies/compass): 6 vulnerabilities - [MongoDB Python Driver](https://junglewise.ai/threats/technologies/mongodb-python-driver): 6 vulnerabilities - [MongoDB Go Driver](https://junglewise.ai/threats/technologies/go-driver): 5 vulnerabilities - [MongoDB Mongo-Express](https://junglewise.ai/threats/technologies/mongo-express): 5 vulnerabilities - [MongoDB Node.js Driver](https://junglewise.ai/threats/technologies/node-js-driver): 5 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "MongoDB Libmongocrypt vulnerabilities", https://junglewise.ai/threats/technologies/libmongocrypt, 13 November 2026.