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CVE-2026-96757

Estado: AplazadaCrítica (9.3)—

orval before 8.29.0 fails to escape OpenAPI media-type keys when emitting them into single-quoted Content-Type string literals in generated code. Attackers can inject JavaScript through crafted media-type keys in OpenAPI specifications that executes when generated fetch operations or mock resolvers are invoked.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:N, PR:N, UI:N: inyección de código JavaScript en especificaciones OpenAPI sin autenticación. Ejecución al invocar operaciones fetch generadas.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementVulnerability ScanningRestrict Web-Based ContentNetwork SegmentationLimit Software InstallationLimit Access to Resource Over Network

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Orval — OrvalAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-96757",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-96757",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-23T17:47:51.520475Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "disclosure@vulncheck.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "disclosure@vulncheck.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 9.3,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/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",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "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": "disclosure@vulncheck.com",
      "affectedData": [
        {
          "vendor": "orval-labs",
          "product": "orval",
          "versions": [
            {
              "status": "affected",
              "version": "6.7.1",
              "lessThan": "8.29.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "8.29.0",
              "versionType": "semver"
            }
          ],
          "packageURL": "pkg:npm/orval",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-09-23T17:17:24.923",
  "references": [
    {
      "url": "https://github.com/orval-labs/orval",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://github.com/orval-labs/orval/blob/v8.28.1/packages/fetch/src/index.ts#L584",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://github.com/orval-labs/orval/commit/43af282d62dca0ef3140023741fb768f6a718adb",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://github.com/orval-labs/orval/commit/a2d4af59f3b167dc8a7a65d15f51cdb89ebe2fe5",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://github.com/orval-labs/orval/pull/4007",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://github.com/orval-labs/orval/security/advisories/GHSA-4q3x-rqfw-3x8p",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://github.com/orval-labs/orval/security/advisories/GHSA-rcpr-mq4m-jx9j",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://www.vulncheck.com/advisories/orval-before-8.29.0-code-injection-via-unescaped-openapi-media-type",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://github.com/orval-labs/orval/security/advisories/GHSA-4q3x-rqfw-3x8p",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "disclosure@vulncheck.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "orval before 8.29.0 fails to escape OpenAPI media-type keys when emitting them into single-quoted Content-Type string literals in generated code. Attackers can inject JavaScript through crafted media-type keys in OpenAPI specifications that executes when generated fetch operations or mock resolvers are invoked."
    }
  ],
  "lastModified": "2026-09-23T18:17:12.200",
  "sourceIdentifier": "disclosure@vulncheck.com"
}