CVE-2026-48021

{
  "id": "CVE-2026-48021",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-24T19:16:58.033",
  "lastModified": "2026-10-24T13:10:00.147",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In epa4all, prior to version 2026-05-20, an attacker who can intercept the TLS connection between epa4all and the ePA backend can complete the VAU handshake with attacker-controlled keys and obtain the session encryption keys. All inner HTTP traffic (patient consent decisions, medication data, document operations, authorization tokens, and entitlement queries) becomes readable and modifiable. The attacker can also inject arbitrary requests through the hijacked channel. This issue has been patched in version 2026-05-20."
    },
    {
      "lang": "es",
      "value": "En epa4all, antes de la versión 2026-05-20, un atacante que puede interceptar la conexión TLS entre epa4all y el backend de ePA puede completar el handshake VAU con claves controladas por el atacante y obtener las claves de cifrado de sesión. Todo el tráfico HTTP interno (decisiones de consentimiento del paciente, datos de medicación, operaciones de documentos, tokens de autorización y consultas de derechos) se vuelve legible y modificable. El atacante también puede inyectar solicitudes arbitrarias a través del canal secuestrado. Este problema ha sido parcheado en la versión 2026-05-20."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "med-united",
          "product": "epa4all",
          "versions": [
            {
              "version": "< 2026-05-20",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-25T00:56:57.881404Z",
          "id": "CVE-2026-48021",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        },
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/med-united/epa4all/releases/tag/2026-05-20",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/med-united/epa4all/security/advisories/GHSA-vvh7-x6c7-46gh",
      "source": "[email protected]"
    },
    {
      "url": "https://www.machinespirits.com/advisory/aa49f0",
      "source": "[email protected]"
    }
  ]
}