{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "original_tag": "v3.13.0",
                "range": [
                  {
                    "fixed": "0f6c2b978ad14d38924a78f271875e148af4e053"
                  }
                ],
                "source": "REFERENCES_TAG"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0f6c2b978ad14d38924a78f271875e148af4e053"
            }
          ],
          "repo": "https://github.com/mongodb/mongo-csharp-driver",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-ggmm-wc43-vphh"
  ],
  "database_specific": {
    "cna_assigner": "mongodb",
    "cwe_ids": [
      "CWE-185"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114653.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "range": [
              {
                "introduced": "3.5.0"
              },
              {
                "fixed": "3.13.0"
              }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
          }
        ]
      }
    ]
  },
  "details": "A client-side encryption schema construction component in the MongoDB C# Driver places caller-supplied field identifiers into a position that is interpreted as a pattern expression, without normalizing or validating them. As a result, an application that designates certain fields for client-side field-level encryption may have the protection silently fail to apply, so data intended to be encrypted is stored and returned in cleartext; conversely, the rule may apply more broadly than intended. No user action is required to cause the condition, and any party with ordinary read access to the stored data — without possession of the encryption keys — can observe the unprotected values.",
  "id": "CVE-2026-114653",
  "modified": "2026-10-23T10:30:41.255838518Z",
  "published": "2026-10-22T19:13:58.414Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114653.json"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.13.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-ggmm-wc43-vphh"
    },
    {
      "type": "WEB",
      "url": "https://jira.mongodb.org/browse/CSHARP-6174"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114653"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Silent client-side encryption bypass via unescaped field-name regex in CSFLE schema builder"
}