{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-82291",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-08-28T11:12:54.442Z",
        "datePublished": "2026-08-28T16:19:07.930Z",
        "dateUpdated": "2026-08-28T16:19:07.930Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
                "shortName": "VulnCheck",
                "dateUpdated": "2026-08-28T16:19:07.930Z"
            },
            "datePublic": "2026-06-23T00:00:00.000Z",
            "title": "HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "HeyForm before 3.0.0-rc.8 reflects the request Origin header in CORS responses while allowing credentials, enabling cross-origin requests with authentication. Attackers can execute authenticated GraphQL queries from malicious pages visited by logged-in users to access workspaces, projects, forms, submissions, and respondent data, or modify account settings."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Permissive Cross-domain Security Policy with Untrusted Domains",
                            "cweId": "CWE-942",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "heyform",
                    "product": "heyform",
                    "versions": [
                        {
                            "version": "0",
                            "lessThan": "3.0.0-rc.8",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "REQUIRED",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "NONE",
                        "baseScore": 8.1,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "references": [
                {
                    "url": "https://github.com/heyform/heyform/security/advisories/GHSA-fg7j-rmgr-rc9g",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "name": "GHSA-fg7j-rmgr-rc9g"
                },
                {
                    "url": "https://github.com/heyform/heyform/blob/v3.0.0-rc.7/packages/server/src/main.ts",
                    "tags": [
                        "technical-description"
                    ],
                    "name": "Vulnerable code: main.ts"
                },
                {
                    "url": "https://github.com/heyform/heyform/commit/bf9d738ca70ae5641c0c7372982b00365c5144d4",
                    "tags": [
                        "patch"
                    ],
                    "name": "Fix commit"
                },
                {
                    "url": "https://github.com/heyform/heyform",
                    "tags": [
                        "product"
                    ]
                },
                {
                    "name": "VulnCheck Advisory: HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials",
                    "tags": [
                        "third-party-advisory"
                    ],
                    "url": "https://www.vulncheck.com/advisories/heyform-reflects-any-origin-in-cors-responses-while-allowing-credentials"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "George Chen",
                    "type": "reporter"
                }
            ],
            "x_generator": {
                "engine": "vulncheck-endgame"
            }
        }
    }
}