FKIE_CVE-2026-56422

Vulnerability from fkie_nvd - Published: 2026-06-22 12:16 - Updated: 2026-06-22 18:16
Severity
9.4 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Summary
Multiple MISP core controllers and model capture paths accepted client-controlled request fields such as primary keys (id) and ownership/scope foreign keys (event_id, org_id, user_id, sharing_group_id, galaxy_cluster_uuid, organisation_uuid, and related nested object identifiers) without consistently stripping, pinning, or revalidating them against the server-authorized object. In affected paths, an authenticated user with access to one authorized object could submit crafted REST or form payloads that caused MISP to save data against a different object than the one checked by the authorization logic. Depending on the endpoint, this could allow object overwrite, object re-parenting, ownership transfer, unauthorized sharing-group scoping, event/object injection, proposal retargeting, or stored attacker-controlled content appearing in another user’s context. The fixes harden affected create/edit/import flows by stripping client-supplied primary keys on create-only saves, re-pinning route- or database-authorized identifiers before save operations, validating effective sharing-group scope, and adding field whitelists where ownership fields must never be editable. The initial broad fix also added a central CRUDComponent::edit() primary-key re-pin so payload-supplied IDs cannot redirect saves away from the already-authorized row. GitHub’s patch for 7acf8220c describes this central issue as CRUDComponent::edit() copying supplied fields, including a payload primary key, onto the loaded record, allowing CakePHP save() to update an arbitrary row unless the loaded ID is re-pinned.
References
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/00b2e3dae56fa24ea750eb525cc4709b7e5bee85
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/025f711506850aadb69cde1b57e5e5d57628c87f
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/05aad418c57bb78e6b58a843d70d45de8f50db45
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/2cc26f38f3e85c594957899f09043d5193146607
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/3ff6bd9cfdab5d41b4667ea7298d88ffd6f3fcb8
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/57433015815e59db5a1f11536f90920952cf3fcd
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/58f637aaab4d133e72f1454ebb963191d96d3b78
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/634f1f87c295193486c08c2c7ba1fee8a7339baa
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/63aebc27a878233b9475c742985aaef909bc755b
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/7acf8220cafac58bcfb362da37aca512fe4bb396
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/8311427c2edd72a8341f0a65e1f11073d7ad9191
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/84bafe69f5d0ab7f811371c0801a613f271ebc0b
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/9341690e9b6dde7f0605edea5533e05ba7362e35
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/ab9619dfa6cb5210fd20fb3b0b57006e4fc93916
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/bc182d55dde5686a36ca2eb88fe6c2adabb9fad9
5a6e4751-2f3f-4070-9419-94fb35b644e8https://github.com/MISP/MISP/commit/c80a3533b3d787f45f5185a4621cc0f05b0cf2e5
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "misp",
          "repo": "https://github.com/misp/misp",
          "vendor": "misp",
          "versions": [
            {
              "lessThanOrEqual": "2.5.41",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Multiple MISP core controllers and model capture paths accepted client-controlled request fields such as primary keys (id) and ownership/scope foreign keys (event_id, org_id, user_id, sharing_group_id, galaxy_cluster_uuid, organisation_uuid, and related nested object identifiers) without consistently stripping, pinning, or revalidating them against the server-authorized object.\n\nIn affected paths, an authenticated user with access to one authorized object could submit crafted REST or form payloads that caused MISP to save data against a different object than the one checked by the authorization logic. Depending on the endpoint, this could allow object overwrite, object re-parenting, ownership transfer, unauthorized sharing-group scoping, event/object injection, proposal retargeting, or stored attacker-controlled content appearing in another user\u2019s context.\n\nThe fixes harden affected create/edit/import flows by stripping client-supplied primary keys on create-only saves, re-pinning route- or database-authorized identifiers before save operations, validating effective sharing-group scope, and adding field whitelists where ownership fields must never be editable. The initial broad fix also added a central CRUDComponent::edit()\u00a0primary-key re-pin so payload-supplied IDs cannot redirect saves away from the already-authorized row. GitHub\u2019s patch for 7acf8220c\u00a0describes this central issue as CRUDComponent::edit()\u00a0copying supplied fields, including a payload primary key, onto the loaded record, allowing CakePHP save()\u00a0to update an arbitrary row unless the loaded ID is re-pinned."
    }
  ],
  "id": "CVE-2026-56422",
  "lastModified": "2026-06-22T18:16:49.920",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.4,
          "baseSeverity": "CRITICAL",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-56422",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-22T16:09:12.774625Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-22T12:16:26.920",
  "references": [
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/00b2e3dae56fa24ea750eb525cc4709b7e5bee85"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/025f711506850aadb69cde1b57e5e5d57628c87f"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/05aad418c57bb78e6b58a843d70d45de8f50db45"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/2cc26f38f3e85c594957899f09043d5193146607"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/3ff6bd9cfdab5d41b4667ea7298d88ffd6f3fcb8"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/57433015815e59db5a1f11536f90920952cf3fcd"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/58f637aaab4d133e72f1454ebb963191d96d3b78"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/634f1f87c295193486c08c2c7ba1fee8a7339baa"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/63aebc27a878233b9475c742985aaef909bc755b"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/7acf8220cafac58bcfb362da37aca512fe4bb396"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/8311427c2edd72a8341f0a65e1f11073d7ad9191"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/84bafe69f5d0ab7f811371c0801a613f271ebc0b"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/9341690e9b6dde7f0605edea5533e05ba7362e35"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/ab9619dfa6cb5210fd20fb3b0b57006e4fc93916"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/bc182d55dde5686a36ca2eb88fe6c2adabb9fad9"
    },
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://github.com/MISP/MISP/commit/c80a3533b3d787f45f5185a4621cc0f05b0cf2e5"
    }
  ],
  "sourceIdentifier": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        }
      ],
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "type": "Secondary"
    }
  ]
}



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