Apple Safari up to 18.4 Caches information disclosure

Summaryinfo

A vulnerability described as problematic has been identified in Apple Safari. This affects an unknown function of the component Caches Handler. Such manipulation leads to information disclosure. This vulnerability is documented as CVE-2025-43356. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple Safari and classified as problematic. Affected by this issue is an unknown code block of the component Caches Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

The issue was addressed with improved handling of caches. This issue is fixed in tvOS 26, Safari 26, iOS 18.7 and iPadOS 18.7, visionOS 26, watchOS 26, macOS Tahoe 26, iOS 26 and iPadOS 26. A website may be able to access sensor information without user consent.

The advisory is available at support.apple.com. This vulnerability is handled as CVE-2025-43356 since 04/16/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/25/2026). This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 265819 (Fedora 42 : webkitgtk (2025-fcc043d407)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 26.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (265819) and CERT Bund (WID-SEC-2025-2104). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• IGEL OS
• SUSE openSUSE
• RESF Rocky Linux
• Open Source WebKitGTK

Productinfo

Type

• Web Browser

Vendor

• Apple

Name

• Safari

Version

• 0.8
• 0.9
• 1.0
• 1.0.0
• 1.0.0b1
• 1.0.0b2
• 1.0.1
• 1.0.2
• 1.0.3
• 1.0b1
• 1.1
• 1.1.0
• 1.1.1
• 1.2
• 1.2.0
• 1.2.1
• 1.2.2
• 1.2.3
• 1.2.4
• 1.2.5
• 1.3
• 1.3.0
• 1.3.1
• 1.3.2
• 2
• 2.0
• 2.0 Pre
• 2.0.0
• 2.0.1
• 2.0.2
• 2.0.3
• 2.0.3 417.9.3
• 2.0.4
• 2.0.4 419.3
• 3
• 3.0
• 3.0.0
• 3.0.0b
• 3.0.1
• 3.0.1b
• 3.0.2
• 3.0.2b
• 3.0.3
• 3.0.3b
• 3.0.4
• 3.0.4 Beta
• 3.0.4b
• 3.1
• 3.1.0
• 3.1.0b
• 3.1.1
• 3.1.2
• 3.2
• 3.2.0
• 3.2.1
• 3.2.2
• 3.2.3
• 4
• 4.0
• 4.0 Beta
• 4.0.0b
• 4.0.1
• 4.0.2
• 4.0.3
• 4.0.4
• 4.0.5
• 4.1
• 4.1.1
• 4.1.2
• 4.1.3
• 5
• 5.0
• 5.0.1
• 5.0.5
• 5.0.6
• 5.1
• 5.1.2
• 5.1.2 (7534.52.7)
• 5.1.4
• 5.1.7
• 6
• 6.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.0.4
• 6.0.5
• 6.1
• 6.1.1
• 6.1.2
• 6.1.3
• 6.1.4
• 6.1.5
• 6.1.6
• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4
• 6.2.6
• 6.2.7
• 6.2.8
• 7.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.1.0
• 7.1.1
• 7.1.2
• 7.1.3
• 7.1.4
• 7.1.5
• 7.1.6
• 7.1.7
• 7.1.8
• 8
• 8.0
• 8.0.0
• 8.0.1
• 8.0.2
• 8.0.3
• 8.0.4
• 8.0.5
• 8.0.6
• 8.0.7
• 8.0.8
• 9.0
• 9.0.1
• 9.0.2
• 9.0.3
• 9.1
• 9.1.1
• 9.1.2
• 10
• 10.0
• 10.0.1
• 10.0.2
• 10.0.3
• 10.1
• 10.1.1
• 10.1.2
• 10.5
• 10.5.3
• 10.5.6
• 10.5.8
• 11
• 11.0
• 11.0.1
• 11.0.2
• 11.0.3
• 11.1
• 11.1.1
• 11.1.2
• 12.0
• 12.0.1
• 12.0.2
• 12.0.3
• 12.1
• 12.1.1
• 12.1.2
• 13.0
• 13.0.1
• 13.0.2
• 13.0.3
• 13.0.5
• 13.1
• 13.1.1
• 13.1.2
• 14.0
• 14.0.1
• 14.0.2
• 14.0.3
• 14.1
• 14.1.1
• 14.1.2
• 15
• 15.0
• 15.1
• 15.2
• 15.3
• 15.4
• 15.5
• 15.6
• 15.6.1
• 16
• 16.0
• 16.1
• 16.2
• 16.3
• 16.3.1
• 16.4
• 16.4.1
• 16.5
• 16.5.1
• 16.6
• 17
• 18.1
• 18.4

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

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CPE 2.2info

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Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

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Sourcesinfo

Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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