Refine your search
1 vulnerability found for auth by @tinacms
CVE-2026-63506 (GCVE-0-2026-63506)
Vulnerability from cvelistv5
Published
2026-09-16 20:27
Modified
2026-09-17 15:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Summary
Tina is a headless content management system. Prior to @tinacms/auth 1.1.4 and next-tinacms-azure 15.0.1, isAuthorized accepts a request-controlled clientID and asks isUserAuthorized to validate the bearer token against that selected TinaCloud app instead of the self-hosted site's configured app. An attacker with any TinaCloud account can submit the attacker's own app ID and valid token to a victim endpoint, causing TinaCloudBackendAuthProvider or an affected media authorized callback to accept the attacker's verified status across the tenant boundary. The vulnerable logic is present in packages/@tinacms/auth/src/index.ts and packages/next-tinacms-azure/src/auth.ts. Successful exploitation permits media listing, reading, upload, or deletion and, when TinaCloudBackendAuthProvider is used, GraphQL read, create, update, and delete operations on the victim's content without a victim account or victim interaction. This vulnerability is fixed in @tinacms/auth 1.1.4 and next-tinacms-azure 15.0.1.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-63506",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-17T15:54:06.674922Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-17T15:54:38.071Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/tinacms/tinacms/security/advisories/GHSA-g74q-6g2f-874x"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "tinacms",
"vendor": "tinacms",
"versions": [
{
"status": "affected",
"version": "\u003c 1.1.4"
}
]
},
{
"product": "auth",
"vendor": "@tinacms",
"versions": [
{
"status": "affected",
"version": "\u003c 1.1.4"
}
]
},
{
"product": "next-tinacms-azure",
"vendor": "tinacms",
"versions": [
{
"status": "affected",
"version": "\u003c 15.0.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Tina is a headless content management system. Prior to @tinacms/auth 1.1.4 and next-tinacms-azure 15.0.1, isAuthorized accepts a request-controlled clientID and asks isUserAuthorized to validate the bearer token against that selected TinaCloud app instead of the self-hosted site\u0027s configured app. An attacker with any TinaCloud account can submit the attacker\u0027s own app ID and valid token to a victim endpoint, causing TinaCloudBackendAuthProvider or an affected media authorized callback to accept the attacker\u0027s verified status across the tenant boundary. The vulnerable logic is present in packages/@tinacms/auth/src/index.ts and packages/next-tinacms-azure/src/auth.ts. Successful exploitation permits media listing, reading, upload, or deletion and, when TinaCloudBackendAuthProvider is used, GraphQL read, create, update, and delete operations on the victim\u0027s content without a victim account or victim interaction. This vulnerability is fixed in @tinacms/auth 1.1.4 and next-tinacms-azure 15.0.1."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-639",
"description": "CWE-639: Authorization Bypass Through User-Controlled Key",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-16T20:27:37.385Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/tinacms/tinacms/security/advisories/GHSA-g74q-6g2f-874x",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/tinacms/tinacms/security/advisories/GHSA-g74q-6g2f-874x"
},
{
"name": "https://github.com/tinacms/tinacms/pull/7168",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/tinacms/tinacms/pull/7168"
},
{
"name": "https://github.com/tinacms/tinacms/commit/0a927a4f8d228dd05ee7ca4be32899bc190e73af",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/tinacms/tinacms/commit/0a927a4f8d228dd05ee7ca4be32899bc190e73af"
},
{
"name": "https://github.com/tinacms/tinacms/releases/tag/@tinacms/auth@1.1.4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/tinacms/tinacms/releases/tag/@tinacms/auth@1.1.4"
},
{
"name": "https://github.com/tinacms/tinacms/releases/tag/next-tinacms-azure@15.0.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/tinacms/tinacms/releases/tag/next-tinacms-azure@15.0.1"
}
],
"source": {
"advisory": "GHSA-g74q-6g2f-874x",
"discovery": "UNKNOWN"
},
"title": "Tina: [Broken Access Control] letting any TinaCloud user authorize against any self-hosted site"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-63506",
"datePublished": "2026-09-16T20:27:37.385Z",
"dateReserved": "2026-07-16T21:49:52.069Z",
"dateUpdated": "2026-09-17T15:54:38.071Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}