CVE-2026-18888MongoDB BI Connector ODBC driver may write outside an allocated buffer when retrieving large floating point values as character data
Updated under an hour ago ()
Does this affect you?
It affects MongoDB BI Connector ODBC Driver. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mongodb
- NVD analysis
- Analyzed
- Record last updated
- Aug 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
MongoDB BI Connector ODBC Driver mongodb:bi_connector_odbc_driver (from the name) | from 1.0.0 before 1.4.9 | CNA record |
mongodb bi_connector_odbc_driver mongodb:bi_connector_odbc_driver | from 1.0.0 before 1.4.9 | NVD |
References
- https://github.com/mongodb/mongo-bi-connector-odbc-driver/releases/tag/v1.4.9vendor-advisory, release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.