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CVE-2026-16349 Same-origin policy bypass in the DOM: Navigation component

🗓️ 21 Jul 2026 12:37:31Reported by mozillaType 
cvelist
 cvelist
🔗 www.cve.org👁 36 Views

Same-origin policy bypass in the DOM navigation component fixed in Firefox version 153 and Firefox ESR releases.

Related
Affected
Refs
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "115.38",
        "lessThanOrEqual": "115.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "140.13",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "153",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  },
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.13",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "153",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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