A use-after-free issue was addressed with improved memory management. (CVE-2026-43726)
CVE-2026-43726 is a use-after-free vulnerability addressed by improved memory management in Safari, iOS, iPadOS, and macOS Tahoe. The issue could cause an unexpected process crash when processing maliciously crafted web content. It is fixed in version 26.5.2 of these platforms. The vulnerability has a CVSS score of 6.5, indicating medium severity, with no confidentiality or integrity impact but a high impact on availability.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-43726) involves a use-after-free condition in Safari and related Apple operating systems, which was mitigated by improved memory management. Exploitation could lead to an unexpected process crash when handling malicious web content. The flaw affects Safari, iOS, iPadOS, and macOS Tahoe prior to version 26.5.2, where it has been fixed. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no confidentiality or integrity impact, and high availability impact.
Potential Impact
Successful exploitation may cause an unexpected process crash, resulting in denial of service. There is no impact on confidentiality or integrity. The vulnerability does not appear to be exploited in the wild at this time.
Mitigation Recommendations
The issue is fixed in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2. Users and administrators should apply these updates to remediate the vulnerability. No additional mitigation steps are indicated.
A use-after-free issue was addressed with improved memory management. (CVE-2026-43726)
Description
CVE-2026-43726 is a use-after-free vulnerability addressed by improved memory management in Safari, iOS, iPadOS, and macOS Tahoe. The issue could cause an unexpected process crash when processing maliciously crafted web content. It is fixed in version 26.5.2 of these platforms. The vulnerability has a CVSS score of 6.5, indicating medium severity, with no confidentiality or integrity impact but a high impact on availability.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-43726) involves a use-after-free condition in Safari and related Apple operating systems, which was mitigated by improved memory management. Exploitation could lead to an unexpected process crash when handling malicious web content. The flaw affects Safari, iOS, iPadOS, and macOS Tahoe prior to version 26.5.2, where it has been fixed. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no confidentiality or integrity impact, and high availability impact.
Potential Impact
Successful exploitation may cause an unexpected process crash, resulting in denial of service. There is no impact on confidentiality or integrity. The vulnerability does not appear to be exploited in the wild at this time.
Mitigation Recommendations
The issue is fixed in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2. Users and administrators should apply these updates to remediate the vulnerability. No additional mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-fq4m-7frw-qjqf
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-43726"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a83aa80bf8831d539e33021
Added to database: 08/18/2026, 00:42:40 UTC
Last enriched: 08/18/2026, 00:57:44 UTC
Last updated: 08/18/2026, 01:52:21 UTC
Views: 3
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