CVE-2026-20683 Auth bypass in iOS and iPadOS
An app can exploit the Sign In With Apple flow to access a user's Apple Account, requiring OS updates to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-20683?
CVE-2026-20683 is a high-severity authentication bypass vulnerability in Apple Ipados, published on 14 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
An authentication issue was addressed with improved state management. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An app may be able to use the Sign In With Apple authentication flow to access the user's Apple Account.
Weakness: CWE-287
Which versions are affected by CVE-2026-20683?
It affects 4 products.
Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Visionos.
How do I fix CVE-2026-20683?
No fix has been published for CVE-2026-20683 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-20683 being exploited?
There is no known exploitation of CVE-2026-20683 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 GHSA-wgcv-q64w-c4pv.