CVE-2026-20665 Security feature bypass in Safari
Attackers can bypass Content Security Policy protections by processing maliciously crafted web content in Apple browsers and operating systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-20665?
CVE-2026-20665 is a medium-severity vulnerability in Apple Ipados, published on 25 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
This issue was addressed through improved state management. This issue is fixed in Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
Weakness: CWE-693
Which versions are affected by CVE-2026-20665?
It affects 7 products.
Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Safari, Apple Tvos, Apple Visionos and 1 more.
How do I fix CVE-2026-20665?
Upgrade to a fixed version.
Is CVE-2026-20665 being exploited?
There is no known exploitation of CVE-2026-20665 in the wild and no public exploit code.
Other vulnerabilities in Apple Ipados
- CVE-2025-43300 Apple iOS, iPadOS, and macOS Out-of-Bounds Write
- CVE-2025-24201 Apple Multiple Products WebKit Out-of-Bounds Write
- CVE-2025-24085 Apple Multiple Products Use-After-Free
- CVE-2025-31200 Apple Multiple Products Memory Corruption
- CVE-2025-31201 Apple Multiple Products Arbitrary Read and Write
Sources
Also known as DEBIAN-CVE-2026-20665, GHSA-w9qh-3c3h-mc7x, UBUNTU-CVE-2026-20665.