Medium 5.3Published Jul 13, 2026

CVE-2026-14906Malicious webpage titles could allow overwriting of bundled PDF resources when saving webpages as PDFs in Firefox for iOS

Updated under an hour ago (Oct 26, 2026, 12:23 PM ET)

Does this affect you?

It affects Mozilla Firefox for iOS and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Mozilla Firefox for iOS

Exploited in the last 30 days

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.

CVSS: 5.3 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-434
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: mozilla
NVD analysis: Analyzed
Record last updated: Jul 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Mozilla Firefox for iOS mozilla:firefox_for_ios (from the name)	from 152.4 not affected	CNA record
mozilla firefox_mobile mozilla:firefox_mobile	before 152.4	NVD

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2045842permissions-required
https://www.mozilla.org/security/advisories/mfsa2026-66/vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.