{"id":"CVE-2026-81533","summary":"MongoDB BI Connector ODBC Driver Memory-Safety Issue When Parsing Oversized LIMIT Values","details":"An application using the MongoDB BI Connector ODBC Driver may encounter a memory-safety issue when a submitted SQL statement contains an unusually long run of digits following a LIMIT clause. The issue occurs only on connections where the driver's optional prefetch setting is enabled, and stems from the driver copying the digit sequence into a fixed-size internal buffer without checking its length. A user able to influence the numeric portion of a LIMIT clause could cause the hosting application process to terminate unexpectedly or corrupt adjacent memory in that process.","modified":"2026-09-13T03:47:17.384745064Z","published":"2026-08-28T20:28:02.666Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81533.json","cna_assigner":"mongodb","cwe_ids":["CWE-121"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81533.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81533"},{"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":{"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:mongodb:bi_connector_odbc_driver:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.4.10"}]}}],"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-2026-81533.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N"}]}