CVE-2026-9078 (GCVE-0-2026-9078)
Vulnerability from cvelistv5
Published
2026-05-25 14:05
Modified
2026-05-26 20:09
Summary
Firefox for iOS displayed specially crafted right-to-left (RTL) and internationalized domain names (IDNs) incorrectly in link preview UI surfaces. A crafted RTL hostname could visually reorder portions of the displayed domain, causing attacker-controlled sites to appear as trusted origins. This vulnerability was fixed in Firefox for iOS 151.1.
Impacted products
Vendor Product Version
Mozilla Firefox for iOS Unaffected: 151.1
Create a notification for this product.
Show details on NVD website


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              "attackComplexity": "LOW",
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              "baseScore": 5.4,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L",
              "version": "3.1"
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                "description": "CWE-451 User Interface (UI) Misrepresentation of Critical Information",
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        "providerMetadata": {
          "dateUpdated": "2026-05-26T20:09:11.212Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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    "cna": {
      "affected": [
        {
          "product": "Firefox for iOS",
          "vendor": "Mozilla",
          "versions": [
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              "status": "unaffected",
              "version": "151.1",
              "versionType": "rpm"
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      "credits": [
        {
          "lang": "en",
          "value": "Barath Stalin K"
        }
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              "type": "text/html",
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          "value": "Firefox for iOS displayed specially crafted right-to-left (RTL) and internationalized domain names (IDNs) incorrectly in link preview UI surfaces. A crafted RTL hostname could visually reorder portions of the displayed domain, causing attacker-controlled sites to appear as trusted origins. This vulnerability was fixed in Firefox for iOS 151.1."
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      "providerMetadata": {
        "dateUpdated": "2026-05-25T14:05:47.780Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
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      "references": [
        {
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2029371"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-52/"
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      ],
      "title": "Firefox iOS RTL Domain Rendering Issue in Link Preview"
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    "dateReserved": "2026-05-20T12:53:12.834Z",
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    "state": "PUBLISHED"
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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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