{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "41.10.4"
              },
              {
                "introduced": "42.0.0-alpha.1"
              },
              {
                "fixed": "42.5.2"
              },
              {
                "introduced": "43.0.0-alpha.1"
              },
              {
                "fixed": "43.0.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "introduced": "f4a50a8fde877075ce3877efd54578997d5e7ece"
            },
            {
              "introduced": "3edf11d95b01a99d843353cb3053a31173ca6db0"
            },
            {
              "fixed": "b62f3fede79745b0caa51f5fd45ae08aece2a4e7"
            },
            {
              "fixed": "61b571b94c54f160fc61294092f0a39a82531c2e"
            },
            {
              "fixed": "5147ac2d278f105ec0801c1ef021709979f6d428"
            },
            {
              "fixed": "7ea14d5f55ecb11a30447701ddca16b3feee0bba"
            },
            {
              "fixed": "e26b2640e7795c42bfb111b76009cbb4327c9a69"
            },
            {
              "fixed": "ebe1165ee2b05c203c26dd2244ef1c5b9b1c04da"
            }
          ],
          "repo": "https://github.com/electron/electron",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-hq2x-r82h-9wj4"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-346",
      "CWE-693"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102673.json"
  },
  "details": "Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.4, 42.5.2, and 43.0.0, popups opened from a sandboxed iframe through Electron's OpenURLFromTab navigation path, including links using target=\"_blank\" or a middle-click, did not receive the inherited HTML sandbox restrictions. An untrusted iframe using the allow-scripts allow-popups configuration could therefore open a popup with the embedding application's full origin, exposing that origin's cookies, storage, and same-origin scripting capabilities. Applications that do not embed untrusted content in sandboxed iframes are not affected. This issue is fixed in versions 41.10.4, 42.5.2, and 43.0.0.",
  "id": "CVE-2026-102673",
  "modified": "2026-10-02T03:30:47.883163005Z",
  "published": "2026-09-29T16:38:41.946Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/releases/tag/v41.10.4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/releases/tag/v42.5.2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/releases/tag/v43.0.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102673.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/electron/electron/security/advisories/GHSA-hq2x-r82h-9wj4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-102673"
    },
    {
      "type": "FIX",
      "url": "https://github.com/electron/electron/commit/7ea14d5f55ecb11a30447701ddca16b3feee0bba"
    },
    {
      "type": "FIX",
      "url": "https://github.com/electron/electron/commit/e26b2640e7795c42bfb111b76009cbb4327c9a69"
    },
    {
      "type": "FIX",
      "url": "https://github.com/electron/electron/commit/ebe1165ee2b05c203c26dd2244ef1c5b9b1c04da"
    },
    {
      "type": "FIX",
      "url": "https://github.com/electron/electron/pull/52133"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Electron drops inherited HTML sandbox restrictions for popups opened through OpenURLFromTab"
}