FKIE_CVE-2026-102677

Vulnerability from fkie_nvd - Published: 2026-09-29 18:17 - Updated: 2026-09-30 19:38
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Summary
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.3 until 42.10.0, 43.5.0, and 44.0.0-beta.6, Electron's sandboxed preload code cache did not verify that a cached entry matched the preload it was served for. A compromised renderer could write attacker-controlled cache data and cause Electron to reuse it for a later load, executing the renderer's code in the more privileged preload context. The issue affects applications that load untrusted content. This issue is fixed in versions 42.10.0, 43.5.0, and 44.0.0-beta.6.
References
security-advisories@github.comhttps://github.com/electron/electron/commit/000453e399bd1dee5e86376cdd9ece5fc071e601
security-advisories@github.comhttps://github.com/electron/electron/commit/25ba8be57c65a83d8c14ebb8aa37693df17a04f3
security-advisories@github.comhttps://github.com/electron/electron/commit/c38d6fd68756f04647ea857bdb6a2abec332e217
security-advisories@github.comhttps://github.com/electron/electron/pull/52480
security-advisories@github.comhttps://github.com/electron/electron/releases/tag/v42.10.0
security-advisories@github.comhttps://github.com/electron/electron/releases/tag/v43.5.0
security-advisories@github.comhttps://github.com/electron/electron/releases/tag/v44.0.0-beta.6
security-advisories@github.comhttps://github.com/electron/electron/security/advisories/GHSA-qmv3-fv6v-rmhq
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "electron",
          "vendor": "electron",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 42.3.3, \u003c 42.10.0"
            },
            {
              "status": "affected",
              "version": "\u003e= 43.0.0-beta.1, \u003c 43.5.0"
            },
            {
              "status": "affected",
              "version": "\u003e= 44.0.0-alpha.1, \u003c 44.0.0-beta.6"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.3 until 42.10.0, 43.5.0, and 44.0.0-beta.6, Electron\u0027s sandboxed preload code cache did not verify that a cached entry matched the preload it was served for. A compromised renderer could write attacker-controlled cache data and cause Electron to reuse it for a later load, executing the renderer\u0027s code in the more privileged preload context. The issue affects applications that load untrusted content. This issue is fixed in versions 42.10.0, 43.5.0, and 44.0.0-beta.6."
    }
  ],
  "id": "CVE-2026-102677",
  "lastModified": "2026-09-30T19:38:27.293",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.1,
        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-29T18:17:09.573",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/electron/electron/commit/000453e399bd1dee5e86376cdd9ece5fc071e601"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/electron/electron/commit/25ba8be57c65a83d8c14ebb8aa37693df17a04f3"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/electron/electron/commit/c38d6fd68756f04647ea857bdb6a2abec332e217"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/electron/electron/pull/52480"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/electron/electron/releases/tag/v42.10.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/electron/electron/releases/tag/v43.5.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/electron/electron/releases/tag/v44.0.0-beta.6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/electron/electron/security/advisories/GHSA-qmv3-fv6v-rmhq"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-345"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}



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