CVE-2026-43734
published 2026-06-29CVE-2026-43734: A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2…
PriorityP431medium6.5CVSS 3.1
AVNACLPRNUIRSUCNINAH
EPSS
0.24%
15.0th percentile
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected process crash.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_and_ipados | < 26.5.2 | 26.5.2 |
| apple | ipados | < 26.5.2 | 26.5.2 |
| apple | iphone_os | < 26.5.2 | 26.5.2 |
| apple | macos | < 26.5.2 | 26.5.2 |
| apple | macos | >= 26.0 < 26.5.2 | 26.5.2 |
| apple | safari | < 26.5.2 | 26.5.2 |
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VulDB
Apple Safari/iOS/iPadOS/macOS up to 26.5.1 Web use after free
vuldb·2026-06-30·CVSS 6.5
CVE-2026-43734 [MEDIUM] Apple Safari/iOS/iPadOS/macOS up to 26.5.1 Web use after free
A vulnerability categorized as critical has been discovered in Apple Safari, iOS, iPadOS and macOS up to 26.5.1. This impacts an unknown function of the component Web Handler. Executing a manipulation can lead to use after free.
This vulnerability is handled as CVE-2026-43734. The attack can be executed remotely. There is not any exploit available.
It is advisable to upgrade the affected component.
GHSA
A use-after-free issue was addressed with improved memory management.
ghsa_unreviewed·2026-06-29
CVE-2026-43734 [MEDIUM] CWE-416 A use-after-free issue was addressed with improved memory management.
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected process crash.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-06-29
Published