Loading vulnerability…
CVE-2026-43700 is a WebKit cross-origin vulnerability affecting Apple Safari, iOS, iPadOS, macOS Tahoe, tvOS, visionOS, and watchOS. The flaw stems from incorrect tracking of security origins, allowing maliciously crafted web content to break expected origin isolation boundaries and disclose sensitive user information. Apple indicates the issue was addressed by improving tracking of security origins. The vulnerability is triggered during processing of attacker-controlled web content and results in unauthorized exposure of data that should remain isolated by the browser's same-origin protections.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
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 valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A WebKit information disclosure vulnerability that may expose sensitive user information via crafted web content.
A WebKit vulnerability where processing maliciously crafted web content may disclose sensitive user information.
A cross-origin vulnerability that could allow malicious web content to disclose sensitive user information.
A macOS Tahoe cross-origin vulnerability in web content processing that may disclose sensitive user information.
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.