CVE-2026-43660: A validation issue was addressed with improved logic

Description

A validation issue was addressed with improved logic. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

None

Availability

None

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.3% · higher than 19% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

MA

macOS · Apple

before 26.5 · source: vendor, NVD

IO

iOS · Apple

before 18.7.9; 26.0 before 26.5 · source: NVD

SA

Safari · Apple

before 26.5 · source: vendor

IA

iOS and iPadOS · Apple

before 18.7.9; before 26.5 · source: vendor

TV

tvOS · Apple

before 26.5 · source: vendor, NVD

VI

visionOS · Apple

before 26.5 · source: vendor, NVD

WA

watchOS · Apple

before 26.5 · source: vendor, NVD