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CVE-2026-5600

Estado: AnalizadaMedia (5.5)—

A new API endpoint introduced in pretix 2025 that is supposed to return all check-in events of a specific event in fact returns all check-in events belonging to the respective organizer. This allows an API consumer to access information for all other events under the same organizer, even those they should not have access to.

These records contain information on the time and result of every ticket scan as well as the ID of the matched ticket. Example:

An unauthorized user usually has no way to match these IDs (position) back to individual people.

Detalles técnicos trazas, registros y código del informe original
{
  "id": 123,
  "successful": true,
  "error_reason": null,
  "error_explanation": null,
  "position": 321,
  "datetime": "2020-08-23T09:00:00+02:00",
  "list": 456,
  "created": "2020-08-23T09:00:00+02:00",
  "auto_checked_in": false,
  "gate": null,
  "device": 1,
  "device_id": 1,
  "type": "entry"
}

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Pretix — Pretix

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-5600",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-5600",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-08T16:02:54.453740Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 5.5,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/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",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "privilegesRequired": "HIGH",
          "subIntegrityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "HIGH",
          "vulnConfidentialityImpact": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6",
      "affectedData": [
        {
          "vendor": "pretix",
          "product": "pretix",
          "versions": [
            {
              "status": "affected",
              "version": "2025.10.0",
              "lessThan": "2026.1.2",
              "versionType": "python"
            },
            {
              "status": "affected",
              "version": "2026.2.0",
              "lessThan": "2026.2.1",
              "versionType": "python"
            },
            {
              "status": "affected",
              "version": "2026.3.0",
              "lessThan": "2026.3.1",
              "versionType": "python"
            }
          ],
          "packageName": "pretix",
          "collectionURL": "https://pypi.python.org",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-04-08T13:16:43.543",
  "references": [
    {
      "url": "https://pretix.eu/about/en/blog/20260408-release-2026-3-1/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6",
      "description": [
        {
          "lang": "en",
          "value": "CWE-653"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A new API endpoint introduced in pretix 2025 that is supposed to \nreturn all check-in events of a specific event in fact returns all \ncheck-in events belonging to the respective organizer. This allows an \nAPI consumer to access information for all other events under the same \norganizer, even those they should not have access to.\n\n\nThese records contain information on the time and result of every ticket scan as well as the ID of the matched ticket. Example:\n\n\n{\n  \"id\": 123,\n  \"successful\": true,\n  \"error_reason\": null,\n  \"error_explanation\": null,\n  \"position\": 321,\n  \"datetime\": \"2020-08-23T09:00:00+02:00\",\n  \"list\": 456,\n  \"created\": \"2020-08-23T09:00:00+02:00\",\n  \"auto_checked_in\": false,\n  \"gate\": null,\n  \"device\": 1,\n  \"device_id\": 1,\n  \"type\": \"entry\"\n}\n\n\n\nAn unauthorized user usually has no way to match these IDs (position) back to individual people."
    },
    {
      "lang": "es",
      "value": "Un nuevo endpoint de API introducido en pretix 2025 que se supone que devuelve todos los eventos de registro de un evento específico, de hecho devuelve todos los eventos de registro pertenecientes al organizador respectivo. Esto permite a un consumidor de API acceder a información para todos los demás eventos bajo el mismo organizador, incluso aquellos a los que no debería tener acceso.\n\nEstos registros contienen información sobre la hora y el resultado de cada escaneo de ticket, así como el ID del ticket coincidente. Ejemplo:\n\n{\n  \"id\": 123,\n  \"successful\": true,\n  \"error_reason\": null,\n  \"error_explanation\": null,\n  \"position\": 321,\n  \"datetime\": \"2020-08-23T09:00:00+02:00\",\n  \"list\": 456,\n  \"created\": \"2020-08-23T09:00:00+02:00\",\n  \"auto_checked_in\": false,\n  \"gate\": null,\n  \"device\": 1,\n  \"device_id\": 1,\n  \"type\": \"entry\"\n}\n\nUn usuario no autorizado normalmente no tiene forma de hacer coincidir estos IDs (posición) con personas individuales."
    }
  ],
  "lastModified": "2026-07-24T20:10:00.147",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:pretix:pretix:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "467C4FAB-6446-4716-9C03-7AC9B72ECF58",
              "versionEndExcluding": "2026.1.2",
              "versionStartIncluding": "2025.10.0"
            },
            {
              "criteria": "cpe:2.3:a:pretix:pretix:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7BFC10B5-5C62-4E2B-A387-9AB3F5A06F75",
              "versionEndExcluding": "2026.2.1",
              "versionStartIncluding": "2026.2.0"
            },
            {
              "criteria": "cpe:2.3:a:pretix:pretix:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8DBC4AF8-B234-4ACB-BB04-06CC103DFF47",
              "versionEndExcluding": "2026.3.1",
              "versionStartIncluding": "2026.3.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "655498c3-6ec5-4f0b-aea6-853b334d05a6"
}