CVE-2026-9078

Published May 25, 2026

Last updated 3 days ago

CVSS medium 5.4

Overview

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.
Source: security@mozilla.org
NVD status: Analyzed
Products: firefox

Risk scores

CVSS 3.1

Type: Secondary
Base score: 5.4
Impact score: 2.5
Exploitability score: 2.8
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
Severity: MEDIUM

Weaknesses

134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-451

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:iphone_os:*:*",
            "matchCriteriaId": "E326C4E6-FC71-4889-954D-274A02D852F5",
            "versionEndExcluding": "151.1",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.