EUVD-2026-40215
GHSA-w4j5-xp5j-wg64
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Remote malicious page needs no auth or user interaction (AV:N/AC:L/PR:N/UI:N); silent clipboard read discloses sensitive data (C:H) with no integrity or availability impact.
Primary rating from Vendor (apple).
CVSS VectorVendor: apple
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Lifecycle Timeline
7DescriptionCVE.org
This issue was addressed through improved state management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. A malicious website may be able to silently hijack clipboard data.
AnalysisAI
Clipboard data disclosure in Apple Safari (and the shared WebKit engine on iOS, iPadOS, and macOS) before version 26.5.2 lets a malicious website silently read or hijack clipboard contents without user interaction or permission, rated CVSS 7.5 (confidentiality-only). Apple has shipped fixes in Safari 26.5.2, iOS/iPadOS 26.5.2, and macOS Tahoe 26.5.2, and the issue was reported internally by Apple. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The victim must visit an attacker-controlled or compromised website using a vulnerable Safari/WebKit build (Safari, iOS, iPadOS, or macOS before 26.5.2) - that is the only prerequisite, with no authentication, permission prompt, or user gesture required (AV:N/AC:L/PR:N/UI:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) describes a network-reachable, low-complexity, unauthenticated attack requiring no user interaction, with high confidentiality impact but no integrity or availability impact - consistent with silent clipboard theft. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A user copies a password or one-time code to the clipboard and then visits a malicious or compromised web page in a vulnerable Safari/WebKit build. The page programmatically reads the clipboard with no prompt or click, exfiltrating the copied secret to an attacker-controlled server. … |
| Remediation | Vendor-released patch: update to Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, or macOS Tahoe 26.5.2 as applicable to the device, per Apple's advisories at https://support.apple.com/en-us/127594, https://support.apple.com/en-us/127595, and https://support.apple.com/en-us/127685. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Issue urgent security alert to all employees directing immediate updates to Safari, iOS, iPadOS, and macOS. …
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External POC / Exploit Code
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