PT-2026-39845 · Apple · Watchos+6

Cantina · Published 2026-05-11 · Updated 2026-05-16 · CVE-2026-43660

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions iOS versions prior to 18.7.9 iOS versions prior to 26.5 iPadOS versions prior to 18.7.9 iPadOS versions prior to 26.5 macOS Tahoe versions prior to 26.5 tvOS versions prior to 26.5 visionOS versions prior to 26.5 watchOS versions prior to 26.5

Description A validation issue exists where processing maliciously crafted web content may prevent the Content Security Policy (a security layer that helps detect and mitigate certain types of attacks, including Cross-Site Scripting and data injection) from being enforced.

Recommendations Update iOS to version 18.7.9 or 26.5 Update iPadOS to version 18.7.9 or 26.5 Update macOS Tahoe to version 26.5 Update tvOS to version 26.5 Update visionOS to version 26.5 Update watchOS to version 26.5

Fix

Protection Mechanism Failure

Weakness Enumeration

CWE-693

Related Identifiers

CVE-2026-43660

Affected Products

Apple Macos

Ios

Ipados

Macos Tahoe

Tvos

Visionos

Watchos

References · 11

• https://support.apple.com/en-us/127118 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43660 · Security Note
• https://support.apple.com/en-us/127110 · Vendor Advisory
• https://support.apple.com/en-us/127120 · Vendor Advisory
• https://support.apple.com/en-us/127115 · Vendor Advisory
• https://support.apple.com/en-us/127111 · Vendor Advisory
• https://support.apple.com/en-us/127119 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/2054064102356451633 · Twitter Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-43660 · Note
• https://support.apple.com/en-us/127121 · Note
• https://twitter.com/f1tym1/status/2055626654492307655 · Twitter Post