Description
The issue was addressed with improved checks. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Visiting a maliciously crafted website may leak sensitive data.
Published: 2026-08-17
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The issue was addressed with improved checks. A maliciously crafted website can cause an Apple device to leak sensitive data when visited. The fix is included in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, and macOS Tahoe 26.6.2. An attacker who can host or direct a user to a malicious site can thereby read data the user did not intend to share.

Affected Systems

The flaw impacts Apple devices running iOS or iPadOS before the patched releases, specifically any iOS or iPadOS version earlier than 18.7.10, as well as earlier releases up to 26.6.1. macOS Tahoe versions older than 26.6.2 are also affected.

Risk and Exploitability

Visiting a maliciously crafted website may trigger the data leak, meaning the attack vector is remote via web browsing and requires only user interaction to exploit. Because the exploit can be triggered simply by navigating to a crafted page, the barrier to exploitation is low from the attacker’s perspective. The CVSS score is 6.5, the EPSS score is < 1%, and the vulnerability is not listed in the CISA KEV catalog, indicating a moderate likelihood of exploitation but still a realistic threat due to the simple attack path.

Generated by OpenCVE AI on August 18, 2026 at 20:14 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Install the latest iOS, iPadOS, or macOS updates that include the fix: iOS 18.7.10, iPadOS 18.7.10, iOS 26.6.1, iPadOS 26.6.1, or macOS Tahoe 26.6.2.
  • Avoid visiting untrusted or suspicious websites, especially those that may host malicious content.
  • Use built‑in web content filtering or security features to restrict data exposure from third‑party sites.

Generated by OpenCVE AI on August 18, 2026 at 20:14 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Thu, 27 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
Title Apple Web Browsing Data Leakage Across Safari, iOS, iPadOS, and macOS webkitgtk: Visiting a maliciously crafted website may leak sensitive data
References
Metrics threat_severity

None

threat_severity

Moderate


Tue, 18 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Title Apple Web Browsing Data Leakage Across Safari, iOS, iPadOS, and macOS

Tue, 18 Aug 2026 19:15:00 +0000

Type Values Removed Values Added
First Time appeared Apple ipados
Apple iphone Os
Apple safari
CPEs cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Vendors & Products Apple ipados
Apple iphone Os
Apple safari

Tue, 18 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved checks. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Visiting a maliciously crafted website may leak sensitive data. The issue was addressed with improved checks. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Visiting a maliciously crafted website may leak sensitive data.
Title Sensitive Data Leakage via Malicious Website in Apple iOS, iPadOS, and macOS
References

Tue, 18 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 17 Aug 2026 23:45:00 +0000

Type Values Removed Values Added
Title Sensitive Data Leakage via Malicious Website in Apple iOS, iPadOS, and macOS
Weaknesses CWE-200

Mon, 17 Aug 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple macos
Vendors & Products Apple
Apple ios And Ipados
Apple macos

Mon, 17 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved checks. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Visiting a maliciously crafted website may leak sensitive data.
References

Subscriptions

Apple Ios And Ipados Ipados Iphone Os Macos Safari
cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-08-18T17:59:24.478Z

Reserved: 2026-07-20T18:10:53.025Z

Link: CVE-2026-64778

cve-icon Vulnrichment

Updated: 2026-08-18T13:19:46.761Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-17T22:17:22.777

Modified: 2026-08-18T19:00:11.273

Link: CVE-2026-64778

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-08-17T21:29:37Z

Links: CVE-2026-64778 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-18T20:15:04Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor