What is CVE-2026-18888?

CVE-2026-18888 is a medium-severity vulnerability in Mongodb Bi Connector Odbc Driver, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2026-08-12.

How severe is CVE-2026-18888?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Mongodb Bi Connector Odbc Driver

CVE-2026-18888

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 driv…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Mongodb Bi Connector Odbc Driver — versions 1.0.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cna@mongodb.com

Frequently asked questions

What is CVE-2026-18888?: CVE-2026-18888 is a medium-severity vulnerability in Mongodb Bi Connector Odbc Driver, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2026-08-12.
How severe is CVE-2026-18888?: Medium severity. CVSS v3 base score is 6.5 out of 10.