{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "42.3.3"
              },
              {
                "fixed": "42.10.0"
              },
              {
                "introduced": "43.0.0-beta.1"
              },
              {
                "fixed": "43.5.0"
              },
              {
                "introduced": "44.0.0-alpha.1"
              },
              {
                "fixed": "44.0.0-beta.6"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "22bbbc9f265d4b6f138f6dc7451891241037a780"
            },
            {
              "introduced": "12d2c95b44e1e5470834c9e49d1c9da5f26deadb"
            },
            {
              "introduced": "5662a2e9f7465c8c192392ef6d10d7ba38100145"
            },
            {
              "fixed": "9f0109679540320c5dc5b7bef0aa94733058e8c2"
            },
            {
              "fixed": "87cd122b5de69555831cd752578b810dd6e504d8"
            },
            {
              "fixed": "d5940d84eb9a4c73cc6b0a0c20cbfd1cfe437fa2"
            },
            {
              "fixed": "000453e399bd1dee5e86376cdd9ece5fc071e601"
            },
            {
              "fixed": "25ba8be57c65a83d8c14ebb8aa37693df17a04f3"
            },
            {
              "fixed": "c38d6fd68756f04647ea857bdb6a2abec332e217"
            }
          ],
          "repo": "https://github.com/electron/electron",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-qmv3-fv6v-rmhq"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-20",
      "CWE-345"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102677.json"
  },
  "details": "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.",
  "id": "CVE-2026-102677",
  "modified": "2026-10-01T03:30:24.248497416Z",
  "published": "2026-09-29T17:43:26.960Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/releases/tag/v42.10.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/releases/tag/v43.5.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/releases/tag/v44.0.0-beta.6"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102677.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/electron/electron/security/advisories/GHSA-qmv3-fv6v-rmhq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-102677"
    },
    {
      "type": "FIX",
      "url": "https://github.com/electron/electron/commit/000453e399bd1dee5e86376cdd9ece5fc071e601"
    },
    {
      "type": "FIX",
      "url": "https://github.com/electron/electron/commit/25ba8be57c65a83d8c14ebb8aa37693df17a04f3"
    },
    {
      "type": "FIX",
      "url": "https://github.com/electron/electron/commit/c38d6fd68756f04647ea857bdb6a2abec332e217"
    },
    {
      "type": "FIX",
      "url": "https://github.com/electron/electron/pull/52480"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Electron: Sandboxed preload code cache can be poisoned by a compromised renderer"
}