{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-27837",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-02-24T02:32:39.801Z",
        "datePublished": "2026-02-26T00:19:24.289Z",
        "dateUpdated": "2026-02-26T14:40:07.451Z"
    },
    "containers": {
        "cna": {
            "title": "Dottie vulnerable to prototype pollution bypass via non-first path segments in set() and transform()",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-1321",
                            "lang": "en",
                            "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "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"
                    }
                }
            ],
            "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"
                }
            ],
            "affected": [
                {
                    "vendor": "mickhansen",
                    "product": "dottie.js",
                    "versions": [
                        {
                            "version": ">= 2.0.4, < 2.0.7",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-02-26T00:19:24.289Z"
            },
            "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."
                }
            ],
            "source": {
                "advisory": "GHSA-r5mx-6wc6-7h9w",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9w",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-02-26T14:40:01.145738Z",
                                "id": "CVE-2026-27837",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-02-26T14:40:07.451Z"
                }
            }
        ]
    }
}