PatchTheCEVCVE-2026-19001: The MongoDB BI Connector ODBC Driver may write outside the bounds of a fixed-size buffer when an application s
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CRITICAL 9.8REMOTEUPGRADE
CVE-2026-19001 is a critical-severity flaw (CVSS 9.8) affecting bi connector odbc driver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Critical severity
- CISA SSVC: automatable with total technical impact
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 55%) |
| CISA exploited list | No |
| Weakness | CWE-190 |
| Published | 2026-08-12 |
| Last modified | 2026-10-23 |
Publisher (CNA): MongoDB, Inc. · Vendor: mongodb
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
mongodb bi connector odbc driver UPGRADE
Affected: >= 1.0.0 and < 1.4.9
Fixed in: 1.4.9
Safe to downgrade to: a release before 1.0.0
1. Check installed version
apt-cache policy bi-connector-odbc-driver || rpm -q bi-connector-odbc-driver || bi-connector-odbc-driver --version
2. UPGRADE to 1.4.9 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade bi-connector-odbc-driver
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade bi-connector-odbc-driver
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)
apt-cache madison bi-connector-odbc-driver
sudo apt install bi-connector-odbc-driver=<VERSION_BEFORE_1.0.0>
sudo apt-mark hold bi-connector-odbc-driver
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list bi-connector-odbc-driver
sudo dnf downgrade bi-connector-odbc-driver-<VERSION_BEFORE_1.0.0>
sudo dnf versionlock add bi-connector-odbc-driver
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
Exact fixes by distribution
Fedora 46 · diffoscope · FIXED · 335-1.fc46 · FEDORA-2026-e4c4cc0856 · source
sudo dnf upgrade --advisory=FEDORA-2026-e4c4cc0856
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Related CVEs
- CVE-2026-19004 HIGH 8.1 UPGRADE An application using the MongoDB BI Connector ODBC Driver may experience a memory-safety issue when processing
- CVE-2026-19002 HIGH 8.1 UPGRADE A missing bounds check when parsing stored procedure parameter metadata in the MongoDB BI Connector ODBC Drive
- CVE-2026-19003 HIGH 7.8 UPGRADE A data source definition containing an over-length file path setting may cause the MongoDB BI Connector ODBC D
- CVE-2026-18888 MEDIUM 6.5 UPGRADE The MongoDB BI Connector ODBC Driver converts floating point column values into text without checking that the