Vulnerability-Lookup

GHSA-P96C-XWX8-3CQJ

Vulnerability from github – Published: 2026-10-07 20:29 – Updated: 2026-10-07 20:29

Summary

Payload has a tenant authorization bypass in Multi-Tenant Plugin

Details

Impact

When using the default tenant array field access, an authenticated user could assign themselves to other tenants.

You are affected if:

You are using @payloadcms/plugin-multi-tenant

If you configure the tenants arrayFieldAccess.create/update functions, a secured replacement membership field, you are not affected by this specific default behavior.

Patches

Users should upgrade Payload packages to >= 3.90.0 or >= 4.0.0-canary.34.

Workarounds

Configure tenants arrayFieldAccess.create and tenants arrayFieldAccess.update so only trusted users authorized for all tenants can modify memberships.

Severity

7.1 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@payloadcms/plugin-multi-tenant"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.90.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@payloadcms/plugin-multi-tenant"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0-canary.0"
            },
            {
              "fixed": "4.0.0-canary.34"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-105860"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-07T20:29:53Z",
    "nvd_published_at": "2026-10-06T17:17:22Z",
    "severity": "HIGH"
  },
  "details": "## Impact\n\nWhen using the default tenant array field access, an authenticated user could assign themselves to other tenants.\n\n**You are affected if:**\n\n- You are using `@payloadcms/plugin-multi-tenant`\n\nIf you configure the tenants arrayFieldAccess.create/update functions, a secured replacement membership field, you are not affected by this specific default behavior.\n\n## Patches\n\nUsers should upgrade Payload packages to `\u003e= 3.90.0` or `\u003e= 4.0.0-canary.34`.\n\n## Workarounds\n\nConfigure tenants arrayFieldAccess.create and tenants arrayFieldAccess.update so only trusted users authorized for all tenants can modify memberships.",
  "id": "GHSA-p96c-xwx8-3cqj",
  "modified": "2026-10-07T20:29:53Z",
  "published": "2026-10-07T20:29:53Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/payloadcms/payload/security/advisories/GHSA-p96c-xwx8-3cqj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105860"
    },
    {
      "type": "WEB",
      "url": "https://github.com/payloadcms/payload/commit/19b58692d20d3947f31124bf7a88ac14a5ebf02e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/payloadcms/payload"
    },
    {
      "type": "WEB",
      "url": "https://github.com/payloadcms/payload/releases/tag/v3.90.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Payload has a tenant authorization bypass in Multi-Tenant Plugin"
}

CVE-2026-105860 (GCVE-0-2026-105860)

Vulnerability from cvelistv5 – Published: 2026-10-06 16:33 – Updated: 2026-10-06 17:15

Title

Payload: Tenant authorization bypass in Multi-Tenant Plugin

Summary

Payload is a free and open source headless content management system. In @payloadcms/plugin-multi-tenant versions before 3.90.0 and canary versions before 4.0.0-canary.34, the default tenant array field access allows an authenticated user to assign the user's own account to other tenants. Deployments that replace the default behavior with secured tenants arrayFieldAccess.create and tenants arrayFieldAccess.update functions are not affected by this behavior. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.

Severity

7.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 17:14 UTC

CWE

CWE-862 - Missing Authorization

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/payloadcms/payload/security/ad…	x_refsource_CONFIRM
https://github.com/payloadcms/payload/commit/19b5…	x_refsource_MISC
https://github.com/payloadcms/payload/releases/ta…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
payloadcms	payload	Affected: < 3.90.0 Affected: >= 4.0.0-canary.0, < 4.0.0-canary.34

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-105860",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-06T17:14:06.093190Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-06T17:15:03.137Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "payload",
          "vendor": "payloadcms",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.90.0"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0-canary.0, \u003c 4.0.0-canary.34"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Payload is a free and open source headless content management system. In @payloadcms/plugin-multi-tenant versions before 3.90.0 and canary versions before 4.0.0-canary.34, the default tenant array field access allows an authenticated user to assign the user\u0027s own account to other tenants. Deployments that replace the default behavior with secured tenants arrayFieldAccess.create and tenants arrayFieldAccess.update functions are not affected by this behavior. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862: Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T16:33:20.213Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/payloadcms/payload/security/advisories/GHSA-p96c-xwx8-3cqj",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/payloadcms/payload/security/advisories/GHSA-p96c-xwx8-3cqj"
        },
        {
          "name": "https://github.com/payloadcms/payload/commit/19b58692d20d3947f31124bf7a88ac14a5ebf02e",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/payloadcms/payload/commit/19b58692d20d3947f31124bf7a88ac14a5ebf02e"
        },
        {
          "name": "https://github.com/payloadcms/payload/releases/tag/v3.90.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/payloadcms/payload/releases/tag/v3.90.0"
        }
      ],
      "source": {
        "advisory": "GHSA-p96c-xwx8-3cqj",
        "discovery": "UNKNOWN"
      },
      "title": "Payload: Tenant authorization bypass in Multi-Tenant Plugin"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-105860",
    "datePublished": "2026-10-06T16:33:20.213Z",
    "dateReserved": "2026-10-05T23:06:29.748Z",
    "dateUpdated": "2026-10-06T17:15:03.137Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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