{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "dottie.js",
          "vendor": "mickhansen",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.0.4, \u003c 2.0.7"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Dottie provides nested object access and manipulation in JavaScript. Versions 2.0.4 through 2.0.6 contain an incomplete fix for CVE-2023-26132. The prototype pollution guard introduced in commit `7d3aee1` only validates the first segment of a dot-separated path, allowing an attacker to bypass the protection by placing `__proto__` at any position other than the first. Both `dottie.set()` and `dottie.transform()` are affected. Version 2.0.7 contains an updated fix to address the residual vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1321",
              "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-26T00:19:24.289Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9w",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9w"
        },
        {
          "name": "https://github.com/mickhansen/dottie.js/commit/7e8fa1345a4b46325f0eab8d7aeb1c4deaefdb14",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/mickhansen/dottie.js/commit/7e8fa1345a4b46325f0eab8d7aeb1c4deaefdb14"
        },
        {
          "name": "https://github.com/advisories/GHSA-4gxf-g5gf-22h4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/advisories/GHSA-4gxf-g5gf-22h4"
        }
      ],
      "source": {
        "advisory": "GHSA-r5mx-6wc6-7h9w",
        "discovery": "UNKNOWN"
      },
      "title": "Dottie vulnerable to prototype pollution bypass via non-first path segments in set() and transform()"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-27837",
    "datePublished": "2026-02-26T00:19:24.289Z",
    "dateReserved": "2026-02-24T02:32:39.801Z",
    "dateUpdated": "2026-02-26T00:19:24.289Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}