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TI-2026-56233 Aliases CVE-2026-81490GHSA-g954-97w2-99wv

MongoDB Connector for BI Improper Error Handling During Schema Sampling May Cause Loss of SQL Service

Priority LOW 36CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-476.

Summary

A database user able to create a view in a namespace that MongoDB Connector for BI samples can cause the schema-sampling routine to stop functioning by defining a view whose evaluation reliably fails. The sampling logic classifies the resulting server message as transient and, after the configured retries are exhausted, proceeds without a valid result, ending the schema refresh routine. The mongosqld process continues running without a usable schema, so SQL clients are unable to obtain results until an operator removes the view or excludes its namespace from sampling.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00472 41st percentileScored 2026-11-07
Fix Fixed BI Connector (MongoDB): 2.14.31

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MongoDBBI Connectorbefore 2.14.312.14.31Patch availableCNA
  • BI Connector VendorMongoDB Affected before 2.14.31 Fixed in 2.14.31 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mongodb:bi_connector:*:*:*:*:*:*:*:*before 2.14.31VulnerableMongoDB
  • cpe:2.3:a:mongodb:bi_connector:*:*:*:*:*:*:*:* Versions before 2.14.31 Vulnerable ·MongoDB

Remediation

  • Fix · CNA BI Connector (MongoDB) Fixed in 2.14.31

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    MongoDB BI Connector 2.14.31

    6 records Highest priority Priority MEDIUM 3 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-56241 MongoDB Connector for BI Unbounded Authentication Negotiation Leading to Connection ExhaustionPriority MEDIUM 44
    • TI-2026-56239 MongoDB Connector for BI Improper Error Handling of Log Write Failures May Cause Loss of SQL ServicePriority MEDIUM 44
    • TI-2026-56240 BI Connector Optional Client Certificate Verification Allows Unauthenticated ConnectionsPriority MEDIUM 43
    Show all 6 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-81490
  2. 2026-10-03 Alias added: GHSA-g954-97w2-99wv

References

Advisory 1

  • TI-2026-56241 MongoDB Connector for BI Unbounded Authentication Negotiation Leading to Connection Exhaustion CVSS 4.0HIGH 8.7
  • TI-2026-56239 MongoDB Connector for BI Improper Error Handling of Log Write Failures May Cause Loss of SQL Service CVSS 4.0HIGH 8.7
  • TI-2026-56240 BI Connector Optional Client Certificate Verification Allows Unauthenticated Connections CVSS 4.0HIGH 8.7
  • TI-2026-54087 MongoDB Connector for BI Unescaped Object Names in Generated SHOW CREATE Output CVSS 4.0HIGH 8.5
  • TI-2026-52807 MongoDB BI Connector Improper Memory Handling During Failed Kerberos Authentication May Cause Process Termination CVSS 4.0HIGH 8.2
  • TI-2026-53906 MongoDB Connector for BI Incomplete Escaping of Stored Metadata in Generated SHOW CREATE Output CVSS 4.0MEDIUM 5.6
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences