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vuln-cve/data/2026/18xxx/CVE-2026-18888.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-18888",
"assignerOrgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
"state": "PUBLISHED",
"assignerShortName": "mongodb",
"dateReserved": "2026-08-04T19:36:22.415Z",
"datePublished": "2026-08-12T20:29:33.618Z",
"dateUpdated": "2026-08-13T14:14:30.650Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
"shortName": "mongodb",
"dateUpdated": "2026-08-12T20:29:33.618Z"
},
"title": "MongoDB BI Connector ODBC driver may write outside an allocated buffer when retrieving large floating point values as character data",
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"cweId": "CWE-787",
"description": "CWE-787: Out-of-bounds write",
"type": "CWE"
}
]
}
],
"affected": [
{
"vendor": "MongoDB",
"product": "BI Connector ODBC Driver",
"repo": "https://github.com/mongodb/mongo-bi-connector-odbc-driver",
"versions": [
{
"status": "affected",
"version": "1.0.0",
"lessThan": "1.4.9",
"versionType": "semver"
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}
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"lang": "en",
"value": "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.",
"supportingMedia": [
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"base64": false,
"value": "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."
}
]
}
],
"references": [
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"url": "https://github.com/mongodb/mongo-bi-connector-odbc-driver/releases/tag/v1.4.9"
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"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"subIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "HIGH",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"version": "4.0",
"baseSeverity": "HIGH",
"baseScore": 7.1,
"vectorString": "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"
}
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"lang": "en",
"value": "GENERAL"
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"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH",
"baseSeverity": "MEDIUM",
"baseScore": 6.5,
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 1.0.4"
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},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-08-13T14:11:24.835472Z",
"id": "CVE-2026-18888",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
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}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-08-13T14:14:30.650Z"
}
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]
}
}