Use-after-free in WebKit leading to Safari crash
CVE-2026-28947 is a WebKit use-after-free vulnerability in Apple platforms. Apple states that the issue was addressed with improved memory management and that processing maliciously crafted web content may lead to an unexpected Safari crash. The flaw affects Safari/WebKit on Safari 26.5, iOS 26.5, iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, and watchOS 26.5, and is referenced in Apple advisories for macOS Sonoma and macOS Sequoia as a WebKit issue causing unexpected Safari crashes. No vulnerable function or deeper root-cause detail beyond use-after-free in WebKit is provided in the supplied content.
Are you exposed to this one?
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.
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
18 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Unknown
Unknown
A WebKit vulnerability where maliciously crafted web content may cause an unexpected Safari crash.
A vulnerability in macOS Tahoe acknowledged by Apple, but no technical details are provided in the content excerpt.
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.