MongoDB Database Tools trust certificates from recoverable eMudhra CAs
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-295.
Summary
MongoDB Database Tools before 100.20.0 trust certificates issued by recoverable eMudhra intermediate CAs, because builds made with Golang versions that predate the eMudhra denylist entry do not reject them. This is improper certificate validation (CWE-295). A remote attacker holding a certificate from one of these CAs can read and alter data exchanged with the tools after a user interacts with them, without needing any privileges.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Description from the CNA
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
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update MongoDB Database Tools to 100.20.0, which is built with Golang 1.27.3. Red Hat rates this Moderate. Red Hat Ceph Storage 9 is affected without a fix, and Red Hat's plan for it is none available.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
- Fix · CNA Database Tools (MongoDB) Fixed in 100.20.0
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Ceph Storage 9 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-28 Threatist record created from CVE-2026-116641
- 2026-10-29 Alias added: GHSA-5j5x-575j-vr62
- 2026-10-29 CISA SSVC decision points changed
- 2026-10-29 Priority changed: MEDIUM → LOW
- 2026-11-04 Affected versions changed · Red Hat
- 2026-11-04 CVSS score added · Red Hat
References
More MongoDB vulnerabilities
- TI-2019-08023 Code injection in mongo-express KEVCVSS 3.1CRITICAL 9.9
- TI-2025-13542 Zlib compressed protocol header length confusion may allow memory read KEVCVSS 4.0HIGH 8.7
- TI-2026-79432 BSON output corruption via out-of-range binary subtype in MongoDB C# Driver CVSS 4.0MEDIUM 6.9
- TI-2026-79424 NoSQL command injection via mismatched BSON length in MongoDB C# Driver CVSS 4.0MEDIUM 6.9
- TI-2026-79422 Unbounded memory growth in MongoDB C# Driver BSON deserialization CVSS 4.0HIGH 8.2
- TI-2026-79427 Authentication bypass via issuer-and-serial-only certificate equality CVSS 4.0HIGH 7.6
Sources
- CVE-2026-116641 · CVE Program
- CVE-2026-116641 · NVD
- FIRST EPSS
- GHSA-5j5x-575j-vr62 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-116641 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences