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CVE-2026-43721 is a clipboard hijacking vulnerability in the WebKit Storage component affecting Safari, iOS, iPadOS, macOS Tahoe, tvOS, visionOS, and watchOS prior to the vendor-fixed releases. The issue is described as a state management flaw that could allow a malicious website to silently hijack clipboard data. The vulnerability was addressed by improved state management, indicating that clipboard-related access or ownership state could be manipulated or mishandled during web content processing, enabling unauthorized clipboard interaction without expected user awareness or consent.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A WebKit Storage vulnerability that may allow a malicious website to silently hijack clipboard data.
A WebKit Storage vulnerability that may allow a malicious website to silently hijack clipboard data.
A vulnerability that could allow a malicious website to silently hijack clipboard data.
A macOS Tahoe vulnerability that may allow a malicious website to silently hijack clipboard data.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.