Vulnerability in MongoDB Database Tools
CVE-2026-116641
The DB Tools rely on the TLS implementation in Golang’s standard library, which generally uses the system CA store. However, the crypto/x509 package also has its own internal denylist of known-bad CA certificates. Golang 1.27.3 adds the eMudhra certificates to this list. DB Tools version 100.19.0 was compiled with Golang 1.26.8, which does not include this check. The issue is resolved by updating to Golang 1.27.3 in DB Tools 100.20.0
Vulnerability class: Improper Certificate Validation
Published .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-116641?
- CVE-2026-116641 is a medium-severity vulnerability in MongoDB Database Tools, classified under Improper Certificate Validation. CVSS score: 6.8/10. Published 2026-10-28.
- How severe is CVE-2026-116641?
- Medium severity. CVSS v3 base score is 6.8 out of 10.