CVE-2026-20644 Memory corruption in Safari
Attackers can cause a process crash by tricking users into visiting malicious web content in Safari or Apple operating systems.
- 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-2026-20644?
CVE-2026-20644 is a medium-severity memory corruption vulnerability in Apple Ipados, published on 11 Feb 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
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. Processing maliciously crafted web content may lead to an unexpected process crash.
Which versions are affected by CVE-2026-20644?
3 open source packages ship an affected version, including java, java-min and jre. It affects 5 products.
| Package | Affected | Fixed in |
|---|---|---|
java Bitnami | All versions | 1.8.0, 8.0.491 |
java-min Bitnami | All versions | 1.8.0, 8.0.491 |
jre Bitnami | All versions | 1.8.0, 8.0.491 |
Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Safari, Apple Visionos.
How do I fix CVE-2026-20644?
Upgrade java to a fixed version for your release line: 1.8.0 or 8.0.491.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-20644 being exploited?
There is no known exploitation of CVE-2026-20644 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 BIT-java-2026-20644, BIT-java-min-2026-20644, BIT-jre-2026-20644, DEBIAN-CVE-2026-20644, GHSA-pxhf-qg7h-8x8m, MINI-g793-9m79-mj2g and 1 more.