CVE-2026-28946 Use after free in Safari
Attackers can cause an unexpected Safari crash by processing maliciously crafted web content due to a use-after-free vulnerability.
- 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-2026-28946?
CVE-2026-28946 is a medium-severity use after free vulnerability in Apple Macos, published on 11 May 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
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5, macOS Tahoe 26.5. Processing maliciously crafted web content may lead to an unexpected Safari crash.
Weakness: CWE-416
Which versions are affected by CVE-2026-28946?
It affects 1 product.
Products include Apple Macos.
How do I fix CVE-2026-28946?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-28946 being exploited?
There is no known exploitation of CVE-2026-28946 in the wild and no public exploit code.
Other vulnerabilities in Apple Macos
Sources
Also known as DEBIAN-CVE-2026-28946, ECHO-8f88-0520-1270, GHSA-ch66-7v2f-mvh2, ROOT-OS-DEBIAN-12-CVE-2026-28946, UBUNTU-CVE-2026-28946.