WebKit use-after-free process crash in Apple Safari and Apple platforms
CVE-2026-28913 is a WebKit memory-safety vulnerability affecting Apple platforms, including Safari 26.5, iOS 26.5, iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5, and Safari/WebKit updates for macOS Sonoma and macOS Sequoia. Apple describes the issue as a use-after-free flaw addressed with improved memory management/handling. The vulnerability is triggered when WebKit processes maliciously crafted web content, resulting in an unexpected process crash. The available advisory text does not identify the specific vulnerable function or code path.
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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
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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
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A use-after-free vulnerability in Apple web content processing that may cause an unexpected process crash via maliciously crafted web content.
A use-after-free vulnerability in Apple software for macOS Sonoma and macOS Sequoia where maliciously crafted web content may cause an unexpected process crash.
A WebKit vulnerability where maliciously crafted web content may cause an unexpected process crash.
A use-after-free vulnerability in macOS Tahoe triggered by maliciously crafted web content, potentially causing an unexpected process crash.
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.