{"id":"CVE-2026-81532","summary":"BI Connector ODBC Driver Improper Bounds Checking on Cursor Name Leading to Memory Corruption","details":"A user able to submit SQL through an application using the MongoDB Connector for BI ODBC driver can supply a positioned-cursor statement whose cursor name exceeds the size of an internal fixed-length buffer. Because the name length is not bounded before the driver builds its diagnostic message, memory adjacent to that buffer is overwritten with user-supplied content. This can terminate the hosting application process and may allow unintended code to run within it.","modified":"2026-09-04T03:47:25.615480090Z","published":"2026-08-28T20:26:05.939Z","database_specific":{"cna_assigner":"mongodb","cwe_ids":["CWE-121"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81532.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81532.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81532"},{"type":"PACKAGE","url":"https://github.com/mongodb/mongo-bi-connector-odbc-driver/releases"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mongodb/mongo-bi-connector-odbc-driver","events":[{"introduced":"0"},{"fixed":"d6d72b0bdce003528d52be1f7ad735be28efb03f"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.4.10"}],"source":"AFFECTED_FIELD"}}],"versions":["v1.4.9","v1.4.8","v1.4.7","v1.4.6","v1.4.6-beta","v1.4.5","v1.4.4","v1.4.3","v1.4.2","v1.4.1","v1.4.0","v1.3.0","v1.2.0","v1.1.0","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81532.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}