CVE-2026-9078
Firefox iOS RTL Domain Rendering Issue in Link Preview
Description
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.
INFO
Published Date :
May 25, 2026, 2:05 p.m.
Last Modified :
May 25, 2026, 2:05 p.m.
Remotely Exploit :
No
Source :
mozilla
Affected Products
The following products are affected by CVE-2026-9078
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update Firefox for iOS to version 151.1 or later.
- Verify domain names are displayed correctly.
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CVE-2026-9078 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-9078 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
May. 25, 2026
Action Type Old Value New Value Added Description 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. Added Reference https://bugzilla.mozilla.org/show_bug.cgi?id=2029371 Added Reference https://www.mozilla.org/security/advisories/mfsa2026-52/