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TI-2026-15450 Aliases CVE-2026-18888GHSA-hcwq-44xg-qq4g

Out-of-bounds write in MongoDB BI Connector ODBC Driver

Priority LOW 32CWE-787Published · 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-787 and the CVSS impact.

Summary

The MongoDB BI Connector ODBC Driver converts floating point column values into text without checking that the result fits within the destination buffer. When an application reads a sufficiently large floating point value as text, the driver may write beyond the end of that buffer and corrupt adjacent memory. A user who can store data in a collection read through the BI Connector could use this to crash the application performing the read.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0042 36th percentileScored 2026-11-07
Fix Fixed BI Connector ODBC Driver (MongoDB): 1.4.9

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 Connector ODBC Driver1.0.0 to before 1.4.91.4.9Patch availableCNA
  • BI Connector ODBC Driver VendorMongoDB Affected 1.0.0 to before 1.4.9 Fixed in 1.4.9 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mongodb:bi_connector_odbc_driver:*:*:*:*:*:*:*:*1.0.0 to before 1.4.9VulnerableMongoDB
  • cpe:2.3:a:mongodb:bi_connector_odbc_driver:*:*:*:*:*:*:*:* Versions 1.0.0 to before 1.4.9 Vulnerable ·MongoDB

Remediation

  • Fix · CNA BI Connector ODBC Driver (MongoDB) Fixed in 1.4.9

Fixed in the same release

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

  • Release ·

    MongoDB BI Connector ODBC Driver 1.4.9

    5 records Highest priority Priority MEDIUM 3 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-15527 MongoDB BI Connector ODBC driver may write outside an allocated buffer when handling oversized catalog object namesPriority MEDIUM 50
    • TI-2026-15530 MongoDB BI Connector ODBC Driver Memory-Safety Issue When Handling Stored Procedure Output ParametersPriority MEDIUM 41
    • TI-2026-15528 Crafted database metadata may cause memory corruption in MongoDB BI Connector ODBC DriverPriority MEDIUM 40
    Show all 5 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-18888
  2. 2026-10-03 Alias added: GHSA-hcwq-44xg-qq4g

References

Advisory 1

  • TI-2026-15527 MongoDB BI Connector ODBC driver may write outside an allocated buffer when handling oversized catalog object names CVSS 4.0CRITICAL 9.5
  • TI-2026-15530 MongoDB BI Connector ODBC Driver Memory-Safety Issue When Handling Stored Procedure Output Parameters CVSS 4.0HIGH 8.8
  • TI-2026-56253 BI Connector ODBC Driver Improper Bounds Checking on Cursor Name Leading to Memory Corruption CVSS 4.0HIGH 8.7
  • TI-2026-15528 Crafted database metadata may cause memory corruption in MongoDB BI Connector ODBC Driver CVSS 4.0HIGH 8.8
  • TI-2026-15529 Stack-based buffer overflow in MongoDB BI Connector ODBC Driver CVSS 4.0HIGH 8.4
  • TI-2026-56254 MongoDB BI Connector ODBC Driver Memory-Safety Issue When Parsing Oversized LIMIT Values CVSS 4.0MEDIUM 6.0

Sources

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