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vuln-cve/data/2026/53xxx/CVE-2026-53513.json
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{
"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"
}
}
]
}
}