Apple Safari 26.5.2: Memory Handling Crash with Malicious Web Content
CVE-2026-39872 Published on June 29, 2026
The issue was addressed with improved memory handling. 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.
Vulnerability Analysis
CVE-2026-39872 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Types
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2026-39872 has been classified to as a Dangling pointer vulnerability or weakness.
What is a Buffer Overflow Vulnerability?
The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.
CVE-2026-39872 has been classified to as a Buffer Overflow vulnerability or weakness.
Products Associated with CVE-2026-39872
Want to know whenever a new CVE is published for Apple products? stack.watch will email you.
Affected Versions
Apple Safari:- Before 26.5.2 is affected.
- Before 26.5.2 is affected.
- Before 26.5.2 is affected.