CVE-2026-18029

{
  "id": "CVE-2026-18029",
  "sourceIdentifier": "655498c3-6ec5-4f0b-aea6-853b334d05a6",
  "published": "2026-07-28T11:17:03.677",
  "lastModified": "2026-10-24T13:10:00.147",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Our payment integration with GiroCheckout did not properly validate \npayment status responses. An attacker could use a successful payment \nstatus response from one payment and supply it to the system for a \ndifferent payment, gaining access to multiple valid tickets with only \none payment."
    },
    {
      "lang": "es",
      "value": "Nuestra integración de pagos con GiroCheckout no validaba correctamente las respuestas de estado de pago. Un atacante podría usar una respuesta de estado de pago exitosa de un pago y proporcionarla al sistema para un pago diferente, obteniendo acceso a múltiples boletos válidos con un solo pago."
    }
  ],
  "affected": [
    {
      "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6",
      "affectedData": [
        {
          "vendor": "pretix GmbH",
          "product": "pretix-girosolution",
          "defaultStatus": "unaffected",
          "collectionURL": "https://marketplace.pretix.eu",
          "packageName": "pretix-girosolution",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.0.1",
              "versionType": "python",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/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",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "attackRequirements": "PRESENT",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "LOW",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-28T12:31:51.212712Z",
          "id": "CVE-2026-18029",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-841"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://pretix.eu/about/en/blog/20260728-release-2026-6-1/",
      "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6"
    }
  ]
}