REDHAT-BUG-2483959: High severity Apple Safari vulnerability
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may lead to an unexpected process crash.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 26.5
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2483959?
The severity of REDHAT-BUG-2483959 is classified as high, with a score of 7.
How do I fix REDHAT-BUG-2483959?
To fix REDHAT-BUG-2483959, update to Safari 26.5, iOS 18.7.9, iPadOS 18.7.9, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, or watchOS 26.5.
What kind of issues does REDHAT-BUG-2483959 cause?
REDHAT-BUG-2483959 can cause an unexpected process crash when processing maliciously crafted web content.
Which software is affected by REDHAT-BUG-2483959?
REDHAT-BUG-2483959 affects Apple Safari, iOS, iPadOS, macOS Tahoe, tvOS, visionOS, and watchOS.
When was the fix for REDHAT-BUG-2483959 released?
The fix for REDHAT-BUG-2483959 was released on June 2, 2026.