CVE-2026-43746: Processing maliciously crafted web content may lead to an unexpected Safari crash in Apple Safari
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 Safari crash.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-43746) involves a use-after-free condition in Apple Safari that can be triggered by processing specially crafted web content, leading to an unexpected crash of the browser. The root cause was improper memory management, which has been corrected in Safari 26.5.2 and corresponding OS versions (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2). The CVSS vector indicates the attack requires no privileges but does require user interaction and network access, resulting in availability impact only.
Potential Impact
Successful exploitation results in an unexpected crash of Safari, causing denial of service to the user. There is no indication of confidentiality or integrity impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A fix is available and users should update to Safari 26.5.2 or later, or the corresponding iOS, iPadOS, and macOS versions (26.5.2). Applying these official updates will remediate the vulnerability. No additional mitigation steps are indicated by the vendor.
CVE-2026-43746: Processing maliciously crafted web content may lead to an unexpected Safari crash in Apple Safari
Description
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 Safari crash.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-43746) involves a use-after-free condition in Apple Safari that can be triggered by processing specially crafted web content, leading to an unexpected crash of the browser. The root cause was improper memory management, which has been corrected in Safari 26.5.2 and corresponding OS versions (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2). The CVSS vector indicates the attack requires no privileges but does require user interaction and network access, resulting in availability impact only.
Potential Impact
Successful exploitation results in an unexpected crash of Safari, causing denial of service to the user. There is no indication of confidentiality or integrity impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A fix is available and users should update to Safari 26.5.2 or later, or the corresponding iOS, iPadOS, and macOS versions (26.5.2). Applying these official updates will remediate the vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:21.647Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a42d3d527e9c7971972d1b7
Added to database: 06/29/2026, 20:21:41 UTC
Last enriched: 07/30/2026, 00:58:17 UTC
Last updated: 08/13/2026, 12:41:10 UTC
Views: 85
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