CVE-2026-114647 (GCVE-0-2026-114647)

Vulnerability from cvelistv5 – Published: 2026-10-22 19:13 – Updated: 2026-10-22 21:25
VLAI
Title
NoSQL operator injection via unvalidated replacement document in findOneAndReplace
Summary
The MongoDB C# Driver does not reject replacement documents whose top-level field names begin with a dollar sign in FindOneAndReplace, unlike other replace operations. An application that builds such a document from user-supplied field names can have the server apply update operators instead of a full replacement. The effect is limited to the document matched by the application's own filter, whose contents can be modified in ways the application did not intend.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE
  • CWE-943 - Improper Neutralization of Special Elements in Data Query Logic
Assigner
mongodb CNA under the mitre root
CNA scorecard C 70/100 over 219 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
MongoDB C# Driver Affected: 2.13.0 , < 3.13.0 (semver)
guessed Create a notification for this product.
Show details on NVD website
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            }
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        }
      ],
      "metrics": [
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            "Recovery": "NOT_DEFINED",
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            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
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      "providerMetadata": {
        "dateUpdated": "2026-10-22T21:25:33.454Z",
        "orgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
        "shortName": "mongodb"
      },
      "references": [
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          "url": "https://jira.mongodb.org/browse/CSHARP-6186"
        },
        {
          "url": "https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.13.0"
        },
        {
          "url": "https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-68cj-624m-mxj3"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "NoSQL operator injection via unvalidated replacement document in findOneAndReplace",
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    "assignerShortName": "mongodb",
    "cveId": "CVE-2026-114647",
    "datePublished": "2026-10-22T19:13:51.972Z",
    "dateReserved": "2026-10-21T21:57:44.493Z",
    "dateUpdated": "2026-10-22T21:25:33.454Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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                "vendor": "MongoDB",
                "versions": [
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                    "status": "affected",
                    "version": "2.13.0",
                    "versionType": "semver"
                  }
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            ],
            "source": "cna@mongodb.com"
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        ],
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        "lastModified": "2026-10-22T22:18:05.633",
        "metrics": {
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                "attackComplexity": "LOW",
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                "confidentialityImpact": "NONE",
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                "userInteraction": "NONE",
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              "impactScore": 1.4,
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              "type": "Secondary"
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                "Recovery": "NOT_DEFINED",
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                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
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        "published": "2026-10-22T19:17:38.437",
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}



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