{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-53513",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-09T17:30:33.455Z",
        "datePublished": "2026-07-15T17:15:59.611Z",
        "dateUpdated": "2026-07-15T19:29:02.266Z"
    },
    "containers": {
        "cna": {
            "title": "Better Auth: Server-side request forgery via unvalidated OIDC endpoints on @better-auth/sso provider registration",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-20",
                            "lang": "en",
                            "description": "CWE-20: Improper Input Validation",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-345",
                            "lang": "en",
                            "description": "CWE-345: Insufficient Verification of Data Authenticity",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-441",
                            "lang": "en",
                            "description": "CWE-441: Unintended Proxy or Intermediary ('Confused Deputy')",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-918",
                            "lang": "en",
                            "description": "CWE-918: Server-Side Request Forgery (SSRF)",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 9.6,
                        "baseSeverity": "CRITICAL",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "LOW",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/better-auth/better-auth/security/advisories/GHSA-5rr4-8452-hf4v",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/better-auth/better-auth/security/advisories/GHSA-5rr4-8452-hf4v"
                },
                {
                    "name": "https://github.com/better-auth/better-auth/pull/9574",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/better-auth/better-auth/pull/9574"
                },
                {
                    "name": "https://github.com/better-auth/better-auth/commit/37f60cb176cb53147da7dfd5ec15afa5b486e81e",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/better-auth/better-auth/commit/37f60cb176cb53147da7dfd5ec15afa5b486e81e"
                },
                {
                    "name": "https://github.com/better-auth/better-auth/releases/tag/v1.6.11",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/better-auth/better-auth/releases/tag/v1.6.11"
                }
            ],
            "affected": [
                {
                    "vendor": "better-auth",
                    "product": "better-auth",
                    "versions": [
                        {
                            "version": ">= 0.1.0, < 1.6.11",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "@better-auth",
                    "product": "sso",
                    "versions": [
                        {
                            "version": ">= 0.1.0, < 1.6.11",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-15T17:15:59.611Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.11, the @better-auth/sso plugin's POST /sso/register and POST /sso/update-provider endpoints accept attacker-controlled oidcConfig.userInfoEndpoint, tokenEndpoint, and jwksEndpoint URLs when skipDiscovery: true is set, store them on the ssoProvider row without origin validation, and fetch them during OIDC callback, allowing non-blind server-side request forgery and possible account linking when trustEmailVerified: true is configured. This issue is fixed in version 1.6.11."
                }
            ],
            "source": {
                "advisory": "GHSA-5rr4-8452-hf4v",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-15T19:28:52.542592Z",
                                "id": "CVE-2026-53513",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "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": "2026-07-15T19:29:02.266Z"
                }
            }
        ]
    }
}