FKIE_CVE-2026-26290

Vulnerability from fkie_nvd - Published: 2026-02-27 01:16 - Updated: 2026-02-27 14:06
Severity ?
7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Summary
The WebSocket backend uses charging station identifiers to uniquely associate sessions but allows multiple endpoints to connect using the same session identifier. This implementation results in predictable session identifiers and enables session hijacking or shadowing, where the most recent connection displaces the legitimate charging station and receives backend commands intended for that station. This vulnerability may allow unauthorized users to authenticate as other users or enable a malicious actor to cause a denial-of-service condition by overwhelming the backend with valid session requests.
References
ics-cert@hq.dhs.govhttps://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-07.json
ics-cert@hq.dhs.govhttps://www.cisa.gov/news-events/ics-advisories/icsa-26-057-07
ics-cert@hq.dhs.govhttps://www.ev.energy/en-us
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The WebSocket backend uses charging station identifiers to uniquely \nassociate sessions but allows multiple endpoints to connect using the \nsame session identifier. This implementation results in predictable \nsession identifiers and enables session hijacking or shadowing, where \nthe most recent connection displaces the legitimate charging station and\n receives backend commands intended for that station. This vulnerability\n may allow unauthorized users to authenticate as other users or enable a\n malicious actor to cause a denial-of-service condition by overwhelming \nthe backend with valid session requests."
    },
    {
      "lang": "es",
      "value": "El backend de WebSocket utiliza identificadores de estaciones de carga para asociar sesiones de forma \u00fanica, pero permite que m\u00faltiples puntos finales se conecten utilizando el mismo identificador de sesi\u00f3n. Esta implementaci\u00f3n da lugar a identificadores de sesi\u00f3n predecibles y permite el secuestro de sesi\u00f3n o shadowing, donde la conexi\u00f3n m\u00e1s reciente desplaza a la estaci\u00f3n de carga leg\u00edtima y recibe comandos del backend destinados a esa estaci\u00f3n. Esta vulnerabilidad puede permitir a usuarios no autorizados autenticarse como otros usuarios o permitir a un actor malicioso causar una condici\u00f3n de denegaci\u00f3n de servicio al sobrecargar el backend con solicitudes de sesi\u00f3n v\u00e1lidas."
    }
  ],
  "id": "CVE-2026-26290",
  "lastModified": "2026-02-27T14:06:37.987",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4,
        "source": "ics-cert@hq.dhs.gov",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-02-27T01:16:20.433",
  "references": [
    {
      "source": "ics-cert@hq.dhs.gov",
      "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-07.json"
    },
    {
      "source": "ics-cert@hq.dhs.gov",
      "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-07"
    },
    {
      "source": "ics-cert@hq.dhs.gov",
      "url": "https://www.ev.energy/en-us"
    }
  ],
  "sourceIdentifier": "ics-cert@hq.dhs.gov",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-613"
        }
      ],
      "source": "ics-cert@hq.dhs.gov",
      "type": "Primary"
    }
  ]
}


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