CVE-2026-18888

Source
https://cve.org/CVERecord?id=CVE-2026-18888
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18888.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-18888
Downstream
Published
2026-08-12T20:29:33Z
Modified
2026-09-13T03:45:48Z
Severity
  • 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
MongoDB BI Connector ODBC driver may write outside an allocated buffer when retrieving large floating point values as character data
Details

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.

Database specific
{
    "cna_assigner": "mongodb",
    "cwe_ids": [
        "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18888.json"
}
References

Affected packages

Git / github.com/mongodb/mongo-bi-connector-odbc-driver

Affected ranges

Type
GIT
Repo
https://github.com/mongodb/mongo-bi-connector-odbc-driver
Events
Database specific
Show details
{
    "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"
    ]
}

Affected versions

v1.*
v1.0.0
v1.1.0
v1.2.0
v1.3.0
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.4.6
v1.4.6-beta
v1.4.7
v1.4.8

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18888.json"