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MongoDB Database Tools trust certificates from recoverable eMudhra CAs

Priority LOW 34CWE-295Published · Updated

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

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00144 3rd percentileScored 2026-11-07
Fix Partial Database Tools (MongoDB): 100.20.0Red Hat: 1 without a fix

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

VendorProductAffected versionsFixed inStatusSource
MongoDBDatabase Toolsbefore 100.20.0100.20.0Patch availableCNA
  • Database Tools VendorMongoDB Affected before 100.20.0 Fixed in 100.20.0 Patch available CNA

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 →

ProductStatusPlan or fix
Red Hat Ceph Storage 9AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-116641
  2. 2026-10-29 Alias added: GHSA-5j5x-575j-vr62
  3. 2026-10-29 CISA SSVC decision points changed
  4. 2026-10-29 Priority changed: MEDIUM → LOW
  5. 2026-11-04 Affected versions changed · Red Hat
  6. 2026-11-04 CVSS score added · Red Hat

References

  • 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
See all 376 →

Sources