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CVE-2026-40504

Estado: AplazadaCrítica (9.3)—

Creolabs Gravity before 0.9.6 contains a heap buffer overflow vulnerability in the gravity_vm_exec function that allows attackers to write out-of-bounds memory by crafting scripts with many string literals at global scope. Attackers can exploit insufficient bounds checking in gravity_fiber_reassign() to corrupt heap metadata and achieve arbitrary code execution in applications that evaluate untrusted scripts.

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 indica explotación remota sin privilegios ni interacción (T1190). El heap buffer overflow en gravity_vm_exec permite ejecución arbitraria de código (T1059) y potencialmente escalada (T1068) al corromper metadatos de heap.

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 ManagementExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareVulnerability Scanning

Tecnologías afectadas (1)

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

Creolabs — GravityAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-40504",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-40504",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-16T13:45:28.279979Z"
        }
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    "cvssMetricV31": [
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
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        "cvssData": {
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          "version": "4.0",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
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          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
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          "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"
        }
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  },
  "affected": [
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      "source": "disclosure@vulncheck.com",
      "affectedData": [
        {
          "repo": "https://github.com/marcobambini/gravity",
          "vendor": "marcobambini",
          "product": "gravity",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "0.9.6",
              "versionType": "semver"
            },
            {
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              "version": "0",
              "lessThan": "18b9195598d9b944376754c6d1ad76e38a4adca1",
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          "packageURL": "pkg:github/marcobambini/gravity",
          "defaultStatus": "unaffected"
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  ],
  "published": "2026-04-16T02:16:11.693",
  "references": [
    {
      "url": "https://github.com/marcobambini/gravity/commit/18b9195598d9b944376754c6d1ad76e38a4adca1",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://github.com/marcobambini/gravity/issues/437",
      "source": "disclosure@vulncheck.com"
    },
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      "url": "https://github.com/marcobambini/gravity/releases/tag/0.9.6",
      "source": "disclosure@vulncheck.com"
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      "url": "https://www.vulncheck.com/advisories/creolabs-gravity-heap-buffer-overflow-via-gravity-vm-exec",
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      "description": [
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          "value": "CWE-122"
        }
      ]
    }
  ],
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    {
      "lang": "en",
      "value": "Creolabs Gravity before 0.9.6 contains a heap buffer overflow vulnerability in the gravity_vm_exec function that allows attackers to write out-of-bounds memory by crafting scripts with many string literals at global scope. Attackers can exploit insufficient bounds checking in gravity_fiber_reassign() to corrupt heap metadata and achieve arbitrary code execution in applications that evaluate untrusted scripts."
    }
  ],
  "lastModified": "2026-07-14T21:16:48.270",
  "sourceIdentifier": "disclosure@vulncheck.com"
}