Critical severity · published Aug 12, 2026
CVE-2026-19001
MongoDB BI Connector ODBC driver may write outside an allocated buffer when handling oversized catalog object names
9.8
CVSS
0.5%
EPSS
No
On KEV
Description
The MongoDB BI Connector ODBC Driver may write outside the bounds of a fixed-size buffer when an application supplies an unusually long catalog, schema, or object name to a metadata retrieval function. This may result in memory corruption within the calling application's process, leading to abnormal termination and, under certain conditions, the potential for arbitrary code execution.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MO
MongoDB · MongoDB
1.0.0 before 1.4.9 · source: vendor
BC
BI Connector Odbc Driver · Mongodb
1.0.0 before 1.4.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-19001
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-19001
Vendor Advisory
https://github.com/mongodb/mongo-bi-connector-odbc-driver/releases/tag/v1.4.9
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