GHSA-J84W-JFHQ-VHVJ

Vulnerability from github – Published: 2026-09-29 18:04 – Updated: 2026-09-29 18:04
VLAI
Summary
Electron: File and HTTP protocol handlers allow cross-origin reads without corsEnabled
Details

Impact

Responses served through protocol.registerFileProtocol or protocol.registerHttpProtocol for a custom scheme registered with supportFetchAPI: true but without corsEnabled: true could be read cross-origin by web content. This completes the fix for CVE-2026-70604.

Apps are only affected if they register such a scheme, serve it through one of those handlers, and load untrusted content. Apps that set corsEnabled: true, or that do not load untrusted content, are not affected.

Workarounds

Set corsEnabled: true on the scheme, or do not load untrusted content in windows that can reach it.

Fixed Versions

  • 44.0.0-beta.5
  • 43.4.1
  • 42.9.2
  • 41.10.6

For more information

If you have any questions or comments about this advisory, email us at security@electronjs.org

Severity
7.4 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "electron"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "41.10.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "electron"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "42.0.0-alpha.1"
            },
            {
              "fixed": "42.9.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "electron"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "43.0.0-alpha.1"
            },
            {
              "fixed": "43.4.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "electron"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "44.0.0-alpha.1"
            },
            {
              "fixed": "44.0.0-beta.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-102675"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-346"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-29T18:04:24Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\n\nResponses served through `protocol.registerFileProtocol` or `protocol.registerHttpProtocol` for a custom scheme registered with `supportFetchAPI: true` but without `corsEnabled: true` could be read cross-origin by web content. This completes the fix for CVE-2026-70604.\n\nApps are only affected if they register such a scheme, serve it through one of those handlers, and load untrusted content. Apps that set `corsEnabled: true`, or that do not load untrusted content, are not affected.\n\n### Workarounds\n\nSet `corsEnabled: true` on the scheme, or do not load untrusted content in windows that can reach it.\n\n### Fixed Versions\n\n* `44.0.0-beta.5`\n* `43.4.1`\n* `42.9.2`\n* `41.10.6`\n\n### For more information\n\nIf you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org)",
  "id": "GHSA-j84w-jfhq-vhvj",
  "modified": "2026-09-29T18:04:25Z",
  "published": "2026-09-29T18:04:24Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/security/advisories/GHSA-j84w-jfhq-vhvj"
    },
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/commit/4d2784cc8592471ee2276235b8c2a03efddf937d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/commit/80178e4631cb2f6a5e42f8e793b2ae9624e78a0d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/commit/c595b05976e7a885465b043d17e00a92fc3c3397"
    },
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/commit/ef75c4b98caaa3ebc615f1eba302027028ee04d2"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/electron/electron"
    },
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/releases/tag/v41.10.6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/releases/tag/v42.9.2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/releases/tag/v43.4.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/releases/tag/v44.0.0-beta.5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Electron: File and HTTP protocol handlers allow cross-origin reads without corsEnabled"
}



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