CVE-2026-20691 Information disclosure in Safari
A malicious webpage can fingerprint users due to an authorization issue in Safari and Apple operating systems, requiring an upgrade to patched versions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-20691?
CVE-2026-20691 is a medium-severity vulnerability in Apple Ipados, published on 25 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An authorization issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4, watchOS 26.4. A maliciously crafted webpage may be able to fingerprint the user.
Weakness: CWE-497
Which versions are affected by CVE-2026-20691?
It affects 6 products.
Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Safari, Apple Visionos, Apple Watchos.
How do I fix CVE-2026-20691?
Upgrade to a fixed version.
Is CVE-2026-20691 being exploited?
There is no known exploitation of CVE-2026-20691 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-2026-20691, GHSA-rqx2-8fr2-c94c, UBUNTU-CVE-2026-20691.