EUVD-2026-40195
GHSA-c3mv-5qhf-r357
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Network-delivered via malicious web page (AV:N/AC:L/PR:N/UI:R); impact confirmed as crash-only with no confidentiality or integrity consequence (C:N/I:N/A:H).
Primary rating from Vendor (apple).
CVSS VectorVendor: apple
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Lifecycle Timeline
5DescriptionCVE.org
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.
AnalysisAI
Use-after-free memory corruption in Apple's WebKit engine causes unexpected process crashes when processing maliciously crafted web content. Affected platforms include Safari, iOS 26, iPadOS 26, and macOS Tahoe - all versions prior to 26.5.2. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The victim must actively visit or be redirected to a maliciously crafted web page, satisfying the UI:R (required user interaction) condition in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H yields a 6.5 (Medium), driven by network-reachable delivery and high availability impact against an unauthenticated victim who visits a malicious page. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts a web page containing malicious HTML, JavaScript, or media content specifically designed to trigger the use-after-free in WebKit's content processing pipeline. A victim is directed to the page - via phishing link, malicious advertisement, or compromised site - and upon WebKit rendering the page, the freed memory is accessed, causing an unexpected crash of the Safari or browser process. … |
| Remediation | Vendor-released patch: Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, and macOS Tahoe 26.5.2. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-416 – Use After Free
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External POC / Exploit Code
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