Quick answers
- Is CVE-2026-14906 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-14906 being exploited in the wild.
- How severe is CVE-2026-14906?
- Informational severity, with a CVSS score of 0, published 13 July 2026.
- Which products and versions are affected?
- Mozilla Firefox for iOS < 152.4.
- Is there a fix for CVE-2026-14906?
- A patch was published on 2026-07-13: Fixed in Firefox for iOS 152.4 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-14906 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-14906?
- Check whether you run Mozilla Firefox for iOS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A vulnerability in Firefox for iOS prior to version 152.4 allows for a sandbox file overwrite. When a user saves a webpage as a PDF, the application fails to properly sanitize the webpage title used for the filename. A malicious actor can craft a page title that causes the saved PDF content to overwrite existing PDF files or bundled resources within the application's sandbox. This is likely a path traversal or filename collision issue triggered during the file-saving process. The vulnerability is fixed in version 152.4.
Affected products
- Mozilla Firefox for iOS < 152.4
Timeline
- 2026-07-13: disclosed
- 2026-07-13: advisory
- 2026-07-13: patched: Fixed in Firefox for iOS 152.4