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.
{
"cna_assigner": "mongodb",
"cwe_ids": [
"CWE-787"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18888.json"
}{
"cpe": "cpe:2.3:a:mongodb:bi_connector_odbc_driver:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "1.0.0"
},
{
"fixed": "1.4.9"
}
],
"source": [
"AFFECTED_FIELD",
"CPE_RANGE",
"REFERENCES"
]
}