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CVE-2026-73276

Estado: AplazadaAlta (8.3)—

Gracefulness code ignored cases that should be rejected, resulting in possible HTTP Request Smuggling opportunities.

This issue affects OTP from OTP 22.2 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to inets from 7.1.2 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2.

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.

HTTP Request Smuggling (CWE-444) en servidor Erlang inets accesible remotamente (AV:N, PR:N, UI:N) permite interceptar/desviar tráfico o manipular datos en tránsito. Impacto de integridad (VI:H) confirma modificación de datos.

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

Filter Network TrafficVulnerability ScanningSSL/TLS InspectionPrivileged Account ManagementNetwork SegmentationNetwork Intrusion Prevention

Tecnologías afectadas (2)

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

Erlang — InetsAIErlang — OTPAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-73276",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-73276",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-01T15:55:23.919951Z"
        }
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 8.3,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/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": "PRESENT",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "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": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Erlang",
          "product": "OTP",
          "versions": [
            {
              "status": "affected",
              "version": "22.2",
              "lessThan": "27.3.4.17",
              "versionType": "otp"
            },
            {
              "status": "affected",
              "version": "28.0",
              "lessThan": "28.5.0.6",
              "versionType": "otp"
            },
            {
              "status": "affected",
              "version": "29.0",
              "lessThan": "29.0.6",
              "versionType": "otp"
            }
          ],
          "packageURL": "pkg:software-id/erlang.org/otp",
          "packageName": "otp",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
          ],
          "repo": "https://github.com/erlang/otp",
          "vendor": "Erlang",
          "product": "OTP",
          "versions": [
            {
              "status": "affected",
              "version": "7.1.2",
              "lessThan": "9.3.2.7",
              "versionType": "otp"
            },
            {
              "status": "affected",
              "version": "9.4",
              "lessThan": "9.6.2.3",
              "versionType": "otp"
            },
            {
              "status": "affected",
              "version": "9.7",
              "lessThan": "9.7.2",
              "versionType": "otp"
            }
          ],
          "packageURL": "pkg:otp/inets",
          "packageName": "inets",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
          ],
          "repo": "https://github.com/erlang/otp",
          "vendor": "Erlang",
          "product": "OTP",
          "versions": [
            {
              "status": "affected",
              "changes": [
                {
                  "at": "60add5a19e2154560fdff3fe92dba14a68bbd683",
                  "status": "unaffected"
                },
                {
                  "at": "6cd995e34d3bb3d36dd278dded2d62c25e71820c",
                  "status": "unaffected"
                },
                {
                  "at": "c285240c6e4b93960c5dc4f17ba04e6fdfb27a0f",
                  "status": "unaffected"
                }
              ],
              "version": "c06db0bedf49a9b40725745e73fa82e562612815",
              "lessThan": "*",
              "versionType": "git"
            }
          ],
          "packageURL": "pkg:github/erlang/otp",
          "packageName": "erlang/otp",
          "collectionURL": "https://github.com",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-09-01T15:17:25.367",
  "references": [
    {
      "url": "https://cna.erlef.org/cves/CVE-2026-73276.html",
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://github.com/erlang/otp/commit/60add5a19e2154560fdff3fe92dba14a68bbd683",
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://github.com/erlang/otp/commit/6cd995e34d3bb3d36dd278dded2d62c25e71820c",
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://github.com/erlang/otp/commit/c285240c6e4b93960c5dc4f17ba04e6fdfb27a0f",
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://github.com/erlang/otp/security/advisories/GHSA-6v7q-jwgh-cx8p",
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    },
    {
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-73276",
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "description": [
        {
          "lang": "en",
          "value": "CWE-444"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Gracefulness code ignored cases that should be rejected, resulting in possible HTTP Request Smuggling opportunities.\n\nThis issue affects OTP from OTP 22.2 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to inets from 7.1.2 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2."
    }
  ],
  "lastModified": "2026-09-08T01:17:53.980",
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
}