CVE-2026-123800 (GCVE-0-2026-123800)

Vulnerability from cvelistv5 – Published: 2026-11-09 18:16 – Updated: 2026-11-14 01:50
VLAI
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.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-14 01:50 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-863 - Incorrect Authorization
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7868 records in the last 180 days details
References
URL Tags
https://github.com/supertokens/supertokens-core/s… x_refsource_CONFIRM
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/c… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
https://github.com/supertokens/supertokens-core/r… x_refsource_MISC
Impacted products
Vendor Product Version CPE status
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
guessed Create a notification for this product.
Show details on NVD website

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          "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": "2026-11-14T01:50:30.935Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-123800",
      "date": "2026-11-15",
      "epss": "0.00588",
      "percentile": "0.48696"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "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"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "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."
          }
        ],
        "id": "CVE-2026-123800",
        "lastModified": "2026-11-14T02:16:47.480",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "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"
              },
              "exploitabilityScore": 3.1,
              "impactScore": 6.0,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-123800",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-14T01:50:19.086900Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-11-09T19:16:46.647",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/13c3de170dd40dd217db0f6bd2bded0948476a42"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/1cc02b971f064c2fa2d9bc74b9e85795fdc6a7e5"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/1d9dcb03ce0691d9b8abee48f86cc2729a6008cb"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/337bb3eba812a5ee52d57854701820a0580b6050"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/4902b713f31306ca41148070d10b6185f0e85201"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/4d1ef0e177681f4f74995e4a25a17d224effe115"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/61bfd3ebde1cf4b092da85ee884fa15e288aad51"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/64dfa92c50a2ec288fe787ee5c2fad45548a6475"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/8db9b0c39f97f240e116821434d4eb3c907faccf"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/8e48ef856becbaaeb50ad4c915be1d7ce279416b"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/9b0d3a9fdbdcb48dd7dd9d520075bbefbae3cf9b"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/a186f1013c784de8a796a732e925e1870fec0f40"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/b58bc3d03549d20495df71c03ef5478799c184db"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/bf6184f027a99bd1b3b1df3d20e376dda6521399"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/c6d7dc7d73b9bb3075b3f7a1a0c0c5780430c292"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/df79f3b4399ef31aea4cb44cc7b65761a2cb94a7"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/e616f4002c31d256f9ff6cb3d3685b924ef53a6d"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/commit/ff9ca3ec53861a91996c4e9581fa6f2e01331736"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v10.0.8"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v10.1.9"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v11.0.9"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v11.1.4"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v11.2.4"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v11.3.8"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v11.4.8"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v12.0.11"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v12.1.2"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v12.2.1"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v12.3.1"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v6.0.24"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v7.0.23"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v8.0.7"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v9.0.6"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v9.1.6"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v9.2.7"
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          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/releases/tag/v9.3.5"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/supertokens/supertokens-core/security/advisories/GHSA-4rf2-xqvf-8rcx"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-639"
              },
              {
                "lang": "en",
                "value": "CWE-863"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}



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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.