{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.19.13b"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "f0a63fa7c5f74a77ffc52143ca4b0f22c8e47c9e"
            }
          ],
          "repo": "https://github.com/zen-browser/desktop",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-vjfv-85qf-v25c"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-451"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45150.json"
  },
  "details": "Zen is a firefox-based browser. Prior to 1.19.13b, Zen Browser did not provide a persistent, clearly visible security notification when a webpage entered fullscreen mode, allowing an attacker-controlled page to hide the real browser UI and origin information, imitate a trusted website UI, and combine with long-domain URL eliding to spoof a trusted origin for phishing and credential theft. This issue is fixed in version 1.19.13b.",
  "id": "CVE-2026-45150",
  "modified": "2026-07-17T03:41:53.875010756Z",
  "published": "2026-07-15T15:35:17.010Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45150.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/zen-browser/desktop/security/advisories/GHSA-vjfv-85qf-v25c"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45150"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Zen Browser - Missing Fullscreen Security Notification Allows Origin Spoofing"
}