FKIE_CVE-2026-34781

Vulnerability from fkie_nvd - Published: 2026-04-07 22:16 - Updated: 2026-07-24 22:10
Severity
2.8 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Summary
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5, apps that call clipboard.readImage() may be vulnerable to a denial of service. If the system clipboard contains image data that fails to decode, the resulting null bitmap is passed unchecked to image construction, triggering a controlled abort and crashing the process. Apps are only affected if they call clipboard.readImage(). Apps that do not read images from the clipboard are not affected. This issue does not allow memory corruption or code execution. This vulnerability is fixed in 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5.
References
security-advisories@github.comhttps://github.com/electron/electron/security/advisories/GHSA-f37v-82c4-4x64Vendor Advisory
Impacted products
Vendor Product Version
electronjs electron *
electronjs electron *
electronjs electron *
electronjs electron 41.2.0
electronjs electron 42.0.0
electronjs electron 42.0.0
electronjs electron 42.0.0
electronjs electron 42.0.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "electron",
          "vendor": "electron",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 39.8.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 40.0.0-alpha.1, \u003c 40.8.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 41.0.0-alpha.1, \u003c 41.1.0"
            },
            {
              "status": "affected",
              "version": "\u003e= 42.0.0-alpha.1, \u003c 42.0.0-alpha.5"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "239C939D-31F6-414C-AF8A-385ADA0F2A17",
              "versionEndIncluding": "39.8.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "8190FCCE-AFCA-4D8C-BF8B-C8A3996B0D9D",
              "versionEndIncluding": "40.8.4",
              "versionStartIncluding": "40.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "A87A2631-72BF-432E-B014-AEFE45CB9BAE",
              "versionEndExcluding": "41.1.0",
              "versionStartIncluding": "41.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:electronjs:electron:41.2.0:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "AE2BDFE9-435B-4E7A-9785-0805EE1AED4E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:electronjs:electron:42.0.0:alpha1:*:*:*:node.js:*:*",
              "matchCriteriaId": "498062D8-5C83-4FC2-A04B-94F3228B2BED",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:electronjs:electron:42.0.0:alpha2:*:*:*:node.js:*:*",
              "matchCriteriaId": "A272F9F4-AB62-407C-B1A8-18586A474C19",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:electronjs:electron:42.0.0:alpha3:*:*:*:node.js:*:*",
              "matchCriteriaId": "BF49E260-9653-4D26-8B6C-C6FAFE697F5A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:electronjs:electron:42.0.0:alpha4:*:*:*:node.js:*:*",
              "matchCriteriaId": "2F3B609A-0CA5-4E8C-865E-CF79B6B0CCCC",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5, apps that call clipboard.readImage() may be vulnerable to a denial of service. If the system clipboard contains image data that fails to decode, the resulting null bitmap is passed unchecked to image construction, triggering a controlled abort and crashing the process. Apps are only affected if they call clipboard.readImage(). Apps that do not read images from the clipboard are not affected. This issue does not allow memory corruption or code execution. This vulnerability is fixed in 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5."
    },
    {
      "lang": "es",
      "value": "Electron es un framework para escribir aplicaciones de escritorio multiplataforma usando JavaScript, HTML y CSS. Antes de 39.8.5, 40.8.5, 41.1.0 y 42.0.0-alpha.5, las aplicaciones que llaman a clipboard.readImage() pueden ser vulnerables a una denegaci\u00f3n de servicio. Si el portapapeles del sistema contiene datos de imagen que no se decodifican, el mapa de bits nulo resultante se pasa sin verificar a la construcci\u00f3n de la imagen, lo que desencadena un aborto controlado y bloquea el proceso. Las aplicaciones solo se ven afectadas si llaman a clipboard.readImage(). Las aplicaciones que no leen im\u00e1genes del portapapeles no se ven afectadas. Este problema no permite la corrupci\u00f3n de memoria ni la ejecuci\u00f3n de c\u00f3digo. Esta vulnerabilidad est\u00e1 corregida en 39.8.5, 40.8.5, 41.1.0 y 42.0.0-alpha.5."
    }
  ],
  "id": "CVE-2026-34781",
  "lastModified": "2026-07-24T22:10:00.140",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 2.8,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.3,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 3.3,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-34781",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-08T16:10:12.958024Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-07T22:16:23.123",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/electron/electron/security/advisories/GHSA-f37v-82c4-4x64"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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