Malicious webpage titles could allow overwriting of bundled PDF resources when saving webpages as PDFs in Firefox for iOS

{
  "id": "71fe55939eb06c1550cd8274a1eb1e88f6d2000bbff07905a7693f8ebd2214ec",
  "url": "https://osv.dev/vulnerability/CVE-2026-14906",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Malicious webpage titles could allow overwriting of bundled PDF resources when saving webpages as PDFs in Firefox for iOS",
    "summary": "Pages with malicious titles could potentially allow saved PDF content to overwrite PDF files or bundled content within the Firefox for iOS application sandbox. This vulnerability was fixed in Firefox for iOS 152.4.",
    "evidence": "osv:CVE-2026-14906",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-14906",
      "aliases": [
        "CVE-2026-14906"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mozilla-mobile/firefox-ios",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1991f2b9f99100ccb509a397e84dcf6501adc0bb"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mozilla:firefox_mobile:*:*:*:*:*:iphone_os:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "152.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "firefox-v152.1",
            "firefox-v151.1",
            "firefox-v151.0",
            "firefox-v150.1",
            "firefox-v149.2",
            "firefox-v149.0",
            "focus/klar-v148.2",
            "firefox-v148.1",
            "firefox-v147.5",
            "firefox-v147.4",
            "firefox-v146.1",
            "firefox-v145.2",
            "firefox-v144.3",
            "firefox-v144.2",
            "firefox-v144.1",
            "focus/klar-v143.0",
            "firefox-v142.0",
            "20.1",
            "AuroraV15",
            "AuroraV14",
            "AuroraV13",
            "AuroraV11",
            "AuroraV10",
            "AuroraV8",
            "AuroraV7",
            "AuroraV6",
            "AuroraV2",
            "AuroraV1",
            "AuroraV3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-14906.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:35.834351486Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/14xxx/CVE-2026-14906.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-14906",
        "https://www.mozilla.org/security/advisories/mfsa2026-66/",
        "https://bugzilla.mozilla.org/show_bug.cgi?id=2045842"
      ],
      "provider_metadata": {
        "cna_assigner": "mozilla",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/14xxx/CVE-2026-14906.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-14906",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 503416,
  "published_at": "2026-07-13T18:27:03.771+00:00"
}