{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-114607",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-21T20:34:25.599Z",
        "datePublished": "2026-10-22T16:47:27.480Z",
        "dateUpdated": "2026-10-23T15:02:40.820Z"
    },
    "containers": {
        "cna": {
            "title": "better-auth: OAuth state can be used as a Magic Link to sign in as another user",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-287",
                            "lang": "en",
                            "description": "CWE-287: Improper Authentication",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 9.1,
                        "baseSeverity": "CRITICAL",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/better-auth/better-auth/security/advisories/GHSA-965c-763c-88jm",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/better-auth/better-auth/security/advisories/GHSA-965c-763c-88jm"
                },
                {
                    "name": "https://github.com/better-auth/better-auth/pull/11494",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/better-auth/better-auth/pull/11494"
                },
                {
                    "name": "https://github.com/better-auth/better-auth/commit/ac54bfd67821a7607533af2059858b12bc54e26a",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/better-auth/better-auth/commit/ac54bfd67821a7607533af2059858b12bc54e26a"
                },
                {
                    "name": "https://github.com/better-auth/better-auth/releases/tag/v1.7.7",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/better-auth/better-auth/releases/tag/v1.7.7"
                }
            ],
            "affected": [
                {
                    "vendor": "better-auth",
                    "product": "better-auth",
                    "versions": [
                        {
                            "version": ">= 1.4.0-beta.18, < 1.7.7",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-22T16:47:27.480Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Better Auth is an authentication and authorization library for TypeScript. From 1.4.0-beta.18 until 1.7.7, deployments that enable Magic Link with storeToken set to plain, or with storeToken set to hashed and the global verification.storeIdentifier setting also set to hashed, enable a built-in social or Generic OAuth provider, and use account.storeStateStrategy set to database can accept an OAuth sign-in state value as a Magic Link token. These settings can cause Magic Link verification records and OAuth state to resolve to the same stored identifier, allowing an unauthenticated attacker to start OAuth sign-in for a known email address and redeem the returned state through Magic Link without controlling the mailbox or completing the provider callback. The attacker can obtain a normal session for an existing user, or create an account incorrectly marked as email verified when sign-up is enabled. This issue is fixed in version 1.7.7."
                }
            ],
            "source": {
                "advisory": "GHSA-965c-763c-88jm",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-23T14:55:53.151034Z",
                                "id": "CVE-2026-114607",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-23T15:02:40.820Z"
                }
            }
        ]
    }
}