CVE-2026-114648 (GCVE-0-2026-114648)
Vulnerability from cvelistv5
Published
2026-10-22 19:13
Modified
2026-10-22 21:25
Severity ?
7.2 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CWE
  • CWE-943 - Improper Neutralization of Special Elements in Data Query Logic
Summary
The MongoDB C# Driver does not neutralize dot and dollar characters in dictionary keys, field names and array-filter identifiers used in LINQ queries before placing them into the field paths it sends to the server. An application user whose input reaches these positions can redirect a query or update to fields the application did not name, which can expose other users' documents and widen updates beyond the intended data. Certain values can also write malformed fields that leave stored documents unreadable by the application until they are repaired.
References
Impacted products
Vendor Product Version
MongoDB C# Driver Version: 2.14.0   ≤
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "C# Driver",
          "vendor": "MongoDB",
          "versions": [
            {
              "lessThan": "3.13.0",
              "status": "affected",
              "version": "2.14.0",
              "versionType": "semver"
            }
          ]
        }
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              "type": "text/html",
              "value": "The MongoDB C# Driver does not neutralize dot and dollar characters in dictionary keys, field names and array-filter identifiers used in LINQ queries before placing them into the field paths it sends to the server. An application user whose input reaches these positions can redirect a query or update to fields the application did not name, which can expose other users\u0027 documents and widen updates beyond the intended data. Certain values can also write malformed fields that leave stored documents unreadable by the application until they are repaired."
            }
          ],
          "value": "The MongoDB C# Driver does not neutralize dot and dollar characters in dictionary keys, field names and array-filter identifiers used in LINQ queries before placing them into the field paths it sends to the server. An application user whose input reaches these positions can redirect a query or update to fields the application did not name, which can expose other users\u0027 documents and widen updates beyond the intended data. Certain values can also write malformed fields that leave stored documents unreadable by the application until they are repaired."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H",
            "version": "3.1"
          },
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          "scenarios": [
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              "lang": "en",
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-943",
              "description": "CWE-943: Improper Neutralization of Special Elements in Data Query Logic",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-22T21:25:34.474Z",
        "orgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
        "shortName": "mongodb"
      },
      "references": [
        {
          "url": "https://jira.mongodb.org/browse/CSHARP-6181"
        },
        {
          "url": "https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.13.0"
        },
        {
          "url": "https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-2xqr-fxmx-2cmf"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "NoSQL injection via dot and dollar characters in LINQ filter field names and dictionary keys",
      "x_generator": {
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  "cveMetadata": {
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    "assignerShortName": "mongodb",
    "cveId": "CVE-2026-114648",
    "datePublished": "2026-10-22T19:13:53.086Z",
    "dateReserved": "2026-10-21T21:57:46.197Z",
    "dateUpdated": "2026-10-22T21:25:34.474Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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