CVE-2026-64778
published 2026-08-17CVE-2026-64778: 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…
PriorityP433medium6.5CVSS 3.1
AVNACLPRNUIRSUCHINAN
EPSS
0.34%
26.0th percentile
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, tvOS 27, visionOS 27, watchOS 27. Visiting a maliciously crafted website may leak sensitive data.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_and_ipados | < 18.7.10 | 18.7.10 |
| apple | ios_and_ipados | < 26.6.1 | 26.6.1 |
| apple | ipados | < 18.7.10 | 18.7.10 |
| apple | ipados | >= 26.0 < 26.6.1 | 26.6.1 |
| apple | iphone_os | < 18.7.10 | 18.7.10 |
| apple | iphone_os | >= 26.0 < 26.6.1 | 26.6.1 |
| apple | macos | < 26.6.2 | 26.6.2 |
| apple | macos | >= 26.0 < 26.6.2 | 26.6.2 |
| apple | safari | < 26.6.1 | 26.6.1 |
| apple | tvos | < 27 | 27 |
| apple | visionos | < 27 | 27 |
| apple | watchos | < 27 | 27 |
| webkitgtk | webkitgtk | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
vendor_redhat6.5MEDIUM
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VulDB
Apple iOS/iPadOS/macOS prior 18.7.10/26.6.1/26.6.2 information disclosure (Nessus ID 335968)
vuldb·2026-08-18
CVE-2026-64778 [LOW] Apple iOS/iPadOS/macOS prior 18.7.10/26.6.1/26.6.2 information disclosure (Nessus ID 335968)
A vulnerability was found in Apple iOS, iPadOS and macOS. It has been classified as problematic. Impacted is an unknown function. Performing a manipulation results in information disclosure.
This vulnerability was named CVE-2026-64778. The attack may be initiated remotely. There is no available exploit.
Upgrading the affected component is recommended.
GHSA
The issue was addressed with improved checks.
ghsa_unreviewed·2026-08-18
CVE-2026-64778 [MEDIUM] CWE-200 The issue was addressed with improved checks.
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.
Red Hat
webkitgtk: Visiting a maliciously crafted website may leak sensitive data
vendor_redhat·2026-08-17·CVSS 6.5
CVE-2026-64778 [MEDIUM] CWE-200 webkitgtk: Visiting a maliciously crafted website may leak sensitive data
webkitgtk: 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.
A flaw was found in WebKitGTK. Visiting a malicious website may lead to a sensitive data leak due to improper validation checks.
Statement: To exploit this flaw, an attacker needs to trick a user into visiting a malicious website. For this reason, this flaw has been rated with a moderate severity.
Mitigation: Do not visit untrusted websites or load untrusted web content with WebKitGTK.
In Red Hat Enterprise Linux 7, the following packages require WebKitGTK4: evolution-data-server, glade,
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-64778 webkitgtk: Visiting a maliciously crafted website may leak sensitive data [epel-all]
bugzilla·2026-08-27·CVSS 6.5
CVE-2026-64778 [MEDIUM] CVE-2026-64778 webkitgtk: Visiting a maliciously crafted website may leak sensitive data [epel-all]
CVE-2026-64778 webkitgtk: Visiting a maliciously crafted website may leak sensitive data [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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.
Bugzilla
CVE-2026-64778 webkitgtk: Visiting a maliciously crafted website may leak sensitive data [fedora-all]
bugzilla·2026-08-27·CVSS 6.5
CVE-2026-64778 [MEDIUM] CVE-2026-64778 webkitgtk: Visiting a maliciously crafted website may leak sensitive data [fedora-all]
CVE-2026-64778 webkitgtk: Visiting a maliciously crafted website may leak sensitive data [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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.
Bugzilla
CVE-2026-64778 webkitgtk: Visiting a maliciously crafted website may leak sensitive data
bugzilla·2026-08-26·CVSS 6.5
CVE-2026-64778 [MEDIUM] CVE-2026-64778 webkitgtk: Visiting a maliciously crafted website may leak sensitive data
CVE-2026-64778 webkitgtk: 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.
Sans Isc
Apple Updates Everything, (Mon, Sep 14th)
blogs_sans_isc·2026-09-14·CVSS 6.5
CVE-2022-3437 [MEDIUM] Apple Updates Everything, (Mon, Sep 14th)
Apple Updates Everything
Published: 2026-09-14. Last Updated: 2026-09-14 18:33:44 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
Today, Apple released its annual update across all its operating systems. With that, Apple not only released new features but also patched 261 different vulnerabilities. This is the most vulnerabilities Apple has ever patched, but the increase is not as significant as other vendors' "post-AI" patch releases.
In addition to the major "27" version, Apple also released bug-fix-only releases for the 26 branch of its operating systems and for 15 (Sequioa) for macOS. None of the vulnerabilities is labeled as being exploited. Apple does not note a severity to individual vulnerabilities.
There are some reports about difficulties downloading iOS 27. Users instead
Sans Isc
Apple Patches iOS and macOS, (Mon, Aug 17th)
blogs_sans_isc·2026-08-17·CVSS 5.5
CVE-2026-28958 [MEDIUM] Apple Patches iOS and macOS, (Mon, Aug 17th)
Apple Patches iOS and macOS
Published: 2026-08-17. Last Updated: 2026-08-17 20:26:39 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
Apple today released updates for iOS/iPadOS (26 and 18) and macOS 26. This update fixes 108 vulnerabilities and comes about two weeks after the much smaller macOS update that addressed the single screen-sharing vulnerability. This vulnerability did not affect iOS/iPadOS.
None of the vulnerabilities has been exploited so far. There are a few WebKit vulnerabilities, but no standalone Safari patch for older operating systems. 87 of the vulnerabilities affect only iOS 18, making this more of an iOS 18 release than one for the newer operating systems. Only six vulnerabilities affect all three OSs released today. All 6 vulnerabilities affect WebKit.
Apple's
2026-08-17
Published