CVE-2026-18888
CVE-2026-18888 is a medium-severity vulnerability in Mongodb Bi Connector Odbc Driver with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v4: 7.1
- EPSS exploit prediction: 0% (22nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Mongodb Bi Connector Odbc Driver
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-18888?
- 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.
- How severe is CVE-2026-18888?
- CVE-2026-18888 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2026-18888 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-18888?
- CVE-2026-18888 affects Mongodb Bi Connector Odbc Driver. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-18888?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2026-18888 published?
- CVE-2026-18888 was published on 2026-08-12 and last updated on 2026-09-11.
References
Affected products (1)
- cpe:2.3:a:mongodb:bi_connector_odbc_driver:*:*:*:*:*:*:*:*
More vulnerabilities in Mongodb Bi Connector Odbc Driver
- CVE-2026-19001 — Critical (CVSS 9.8): The MongoDB BI Connector ODBC Driver may write outside the bounds of a fixed-size buffer when an application supplies…
- CVE-2026-81532 — High (CVSS 8.8): A user able to submit SQL through an application using the MongoDB Connector for BI ODBC driver can supply a…
- CVE-2026-19004 — High (CVSS 8.1): An application using the MongoDB BI Connector ODBC Driver may experience a memory-safety issue when processing output…
- CVE-2026-19002 — High (CVSS 8.1): A missing bounds check when parsing stored procedure parameter metadata in the MongoDB BI Connector ODBC Driver can…
- CVE-2026-19003 — High (CVSS 7.8): A data source definition containing an over-length file path setting may cause the MongoDB BI Connector ODBC Driver…
- CVE-2026-81533 — High (CVSS 7.1): An application using the MongoDB BI Connector ODBC Driver may encounter a memory-safety issue when a submitted SQL…
All CVEs affecting Mongodb Bi Connector Odbc Driver →
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