Sensitive Information Disclosure via Path Handling in Apple WebKit
CVE-2026-43732 is a path handling vulnerability in WebKit affecting Safari 26.5.2 prior to the fix, iOS 26.5.2 prior to the fix, iPadOS 26.5.2 prior to the fix, and macOS Tahoe 26.5.2 prior to the fix. Apple states that the issue was caused by insufficient validation in path handling logic and was remediated through improved validation. When WebKit processes maliciously crafted web content, the flaw can result in disclosure of sensitive user information. The available advisory does not identify the specific vulnerable function or code path beyond path handling within WebKit.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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.
Recent activity
6 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 use-after-free vulnerability in web content processing that could lead to memory corruption.
A macOS Tahoe web content processing vulnerability involving use-after-free that may lead to memory corruption.
A path handling vulnerability in Apple web content processing that could disclose sensitive user information.
The version that knows your environment.
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.