CVE-2026-123800 (GCVE-0-2026-123800)
Vulnerability from cvelistv5 – Published: 2026-11-09 18:16 – Updated: 2026-11-09 18:16
VLAI
EPSS
VEX
Title
SuperTokens Core: App-scoped API key can overwrite the parent connection URI domain's credentials and take over sibling applications
Summary
SuperTokens Core is an open source authentication server. From 6.0.0 until 6.0.24, 7.0.23, 8.0.7, 9.0.6, 9.1.6, 9.2.7, 9.3.5, 10.0.8, 10.1.9, 11.0.9, 11.1.4, 11.2.4, 11.3.8, 11.4.8, 12.0.11, 12.1.2, 12.2.1, and 12.3.1, Multitenancy.checkPermissionsForCreateOrUpdate in src/main/java/io/supertokens/multitenancy/Multitenancy.java does not adequately authorize updates to a parent connection URI domain or the base tenant. In a licensed multi-tenant deployment with multiple applications under one non-default connection URI domain and separate api_keys, an attacker holding one application's valid API key can update the parent domain because the CUD-target branch checks the domain without requiring the source application and tenant to be public. Because api_keys is not protected, the attacker can replace the parent key and then sibling application keys, read or modify sibling users, obtain sessions as those users, establish persistence through a sibling dashboard user, and lock out the sibling application's own key. In the advisory's v2 create or update handlers, omitting the optional identifier produces a base-tenant target that skips the permission branches and enterprise-feature gate, allowing changes to firstFactors, required secondary factors, and recipe-enabled flags that affect login integrity and availability. The base-target variant still rejects coreConfig and does not establish key theft. This issue is fixed in versions 6.0.24, 7.0.23, 8.0.7, 9.0.6, 9.1.6, 9.2.7, 9.3.5, 10.0.8, 10.1.9, 11.0.9, 11.1.4, 11.2.4, 11.3.8, 11.4.8, 12.0.11, 12.1.2, 12.2.1, and 12.3.1.
Severity
9.9 (Critical)
Assigner
GitHub_M
CNA
References
37 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| supertokens | supertokens-core |
Affected:
>= 6.0.0, < 6.0.24
Affected: >= 7.0.0, < 7.0.23 Affected: >= 8.0.0, < 8.0.7 Affected: >= 9.0.0, < 9.0.6 Affected: >= 9.1.0, < 9.1.6 Affected: >= 9.2.0, < 9.2.7 Affected: >= 9.3.0, < 9.3.5 Affected: >= 10.0.0, < 10.0.8 Affected: >= 10.1.0, < 10.1.9 Affected: >= 11.0.0, < 11.0.9 Affected: >= 11.1.0, < 11.1.4 Affected: >= 11.2.0, < 11.2.4 Affected: >= 11.3.0, < 11.3.8 Affected: >= 11.4.0, < 11.4.8 Affected: >= 12.0.0, < 12.0.11 Affected: >= 12.1.0, < 12.1.2 Affected: >= 12.2.0, < 12.2.1 Affected: >= 12.3.0, < 12.3.1 |
{
"containers": {
"cna": {
"affected": [
{
"product": "supertokens-core",
"vendor": "supertokens",
"versions": [
{
"status": "affected",
"version": "\u003e= 6.0.0, \u003c 6.0.24"
},
{
"status": "affected",
"version": "\u003e= 7.0.0, \u003c 7.0.23"
},
{
"status": "affected",
"version": "\u003e= 8.0.0, \u003c 8.0.7"
},
{
"status": "affected",
"version": "\u003e= 9.0.0, \u003c 9.0.6"
},
{
"status": "affected",
"version": "\u003e= 9.1.0, \u003c 9.1.6"
},
{
"status": "affected",
"version": "\u003e= 9.2.0, \u003c 9.2.7"
},
{
"status": "affected",
"version": "\u003e= 9.3.0, \u003c 9.3.5"
},
{
"status": "affected",
"version": "\u003e= 10.0.0, \u003c 10.0.8"
},
{
"status": "affected",
"version": "\u003e= 10.1.0, \u003c 10.1.9"
},
{
"status": "affected",
"version": "\u003e= 11.0.0, \u003c 11.0.9"
},
{
"status": "affected",
"version": "\u003e= 11.1.0, \u003c 11.1.4"
},
{
"status": "affected",
"version": "\u003e= 11.2.0, \u003c 11.2.4"
},
{
"status": "affected",
"version": "\u003e= 11.3.0, \u003c 11.3.8"
},
{
"status": "affected",
"version": "\u003e= 11.4.0, \u003c 11.4.8"
},
{
"status": "affected",
"version": "\u003e= 12.0.0, \u003c 12.0.11"
},
{
"status": "affected",
"version": "\u003e= 12.1.0, \u003c 12.1.2"
},
{
"status": "affected",
"version": "\u003e= 12.2.0, \u003c 12.2.1"
},
{
"status": "affected",
"version": "\u003e= 12.3.0, \u003c 12.3.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "SuperTokens Core is an open source authentication server. From 6.0.0 until 6.0.24, 7.0.23, 8.0.7, 9.0.6, 9.1.6, 9.2.7, 9.3.5, 10.0.8, 10.1.9, 11.0.9, 11.1.4, 11.2.4, 11.3.8, 11.4.8, 12.0.11, 12.1.2, 12.2.1, and 12.3.1, Multitenancy.checkPermissionsForCreateOrUpdate in src/main/java/io/supertokens/multitenancy/Multitenancy.java does not adequately authorize updates to a parent connection URI domain or the base tenant. In a licensed multi-tenant deployment with multiple applications under one non-default connection URI domain and separate api_keys, an attacker holding one application\u0027s valid API key can update the parent domain because the CUD-target branch checks the domain without requiring the source application and tenant to be public. Because api_keys is not protected, the attacker can replace the parent key and then sibling application keys, read or modify sibling users, obtain sessions as those users, establish persistence through a sibling dashboard user, and lock out the sibling application\u0027s own key. In the advisory\u0027s v2 create or update handlers, omitting the optional identifier produces a base-tenant target that skips the permission branches and enterprise-feature gate, allowing changes to firstFactors, required secondary factors, and recipe-enabled flags that affect login integrity and availability. The base-target variant still rejects coreConfig and does not establish key theft. This issue is fixed in versions 6.0.24, 7.0.23, 8.0.7, 9.0.6, 9.1.6, 9.2.7, 9.3.5, 10.0.8, 10.1.9, 11.0.9, 11.1.4, 11.2.4, 11.3.8, 11.4.8, 12.0.11, 12.1.2, 12.2.1, and 12.3.1."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.9,
"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:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-639",
"description": "CWE-639: Authorization Bypass Through User-Controlled Key",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-863",
"description": "CWE-863: Incorrect Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-09T18:16:08.303Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/supertokens/supertokens-core/security/advisories/GHSA-4rf2-xqvf-8rcx",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/supertokens/supertokens-core/security/advisories/GHSA-4rf2-xqvf-8rcx"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/13c3de170dd40dd217db0f6bd2bded0948476a42",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/13c3de170dd40dd217db0f6bd2bded0948476a42"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/1cc02b971f064c2fa2d9bc74b9e85795fdc6a7e5",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/1cc02b971f064c2fa2d9bc74b9e85795fdc6a7e5"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/1d9dcb03ce0691d9b8abee48f86cc2729a6008cb",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/1d9dcb03ce0691d9b8abee48f86cc2729a6008cb"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/337bb3eba812a5ee52d57854701820a0580b6050",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/337bb3eba812a5ee52d57854701820a0580b6050"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/4902b713f31306ca41148070d10b6185f0e85201",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/4902b713f31306ca41148070d10b6185f0e85201"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/4d1ef0e177681f4f74995e4a25a17d224effe115",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/4d1ef0e177681f4f74995e4a25a17d224effe115"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/61bfd3ebde1cf4b092da85ee884fa15e288aad51",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/61bfd3ebde1cf4b092da85ee884fa15e288aad51"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/64dfa92c50a2ec288fe787ee5c2fad45548a6475",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/64dfa92c50a2ec288fe787ee5c2fad45548a6475"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/8db9b0c39f97f240e116821434d4eb3c907faccf",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/8db9b0c39f97f240e116821434d4eb3c907faccf"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/8e48ef856becbaaeb50ad4c915be1d7ce279416b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/8e48ef856becbaaeb50ad4c915be1d7ce279416b"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/9b0d3a9fdbdcb48dd7dd9d520075bbefbae3cf9b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/9b0d3a9fdbdcb48dd7dd9d520075bbefbae3cf9b"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/a186f1013c784de8a796a732e925e1870fec0f40",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/a186f1013c784de8a796a732e925e1870fec0f40"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/b58bc3d03549d20495df71c03ef5478799c184db",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/b58bc3d03549d20495df71c03ef5478799c184db"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/bf6184f027a99bd1b3b1df3d20e376dda6521399",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/bf6184f027a99bd1b3b1df3d20e376dda6521399"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/c6d7dc7d73b9bb3075b3f7a1a0c0c5780430c292",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/c6d7dc7d73b9bb3075b3f7a1a0c0c5780430c292"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/df79f3b4399ef31aea4cb44cc7b65761a2cb94a7",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/df79f3b4399ef31aea4cb44cc7b65761a2cb94a7"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/e616f4002c31d256f9ff6cb3d3685b924ef53a6d",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/e616f4002c31d256f9ff6cb3d3685b924ef53a6d"
},
{
"name": "https://github.com/supertokens/supertokens-core/commit/ff9ca3ec53861a91996c4e9581fa6f2e01331736",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/commit/ff9ca3ec53861a91996c4e9581fa6f2e01331736"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v10.0.8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v10.0.8"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v10.1.9",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v10.1.9"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v11.0.9",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v11.0.9"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v11.1.4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v11.1.4"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v11.2.4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v11.2.4"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v11.3.8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v11.3.8"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v11.4.8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v11.4.8"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v12.0.11",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v12.0.11"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v12.1.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v12.1.2"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v12.2.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v12.2.1"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v12.3.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v12.3.1"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v6.0.24",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v6.0.24"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v7.0.23",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v7.0.23"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v8.0.7",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v8.0.7"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v9.0.6",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v9.0.6"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v9.1.6",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v9.1.6"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v9.2.7",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v9.2.7"
},
{
"name": "https://github.com/supertokens/supertokens-core/releases/tag/v9.3.5",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/supertokens/supertokens-core/releases/tag/v9.3.5"
}
],
"source": {
"advisory": "GHSA-4rf2-xqvf-8rcx",
"discovery": "UNKNOWN"
},
"title": "SuperTokens Core: App-scoped API key can overwrite the parent connection URI domain\u0027s credentials and take over sibling applications"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-123800",
"datePublished": "2026-11-09T18:16:08.303Z",
"dateReserved": "2026-11-06T15:27:56.225Z",
"dateUpdated": "2026-11-09T18:16:08.303Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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