High

WebKit process crash on malicious web content in Apple Safari and Apple platforms

IdentifiersCVE-2026-28905CWE-119· Improper Restriction of Operations…

CVE-2026-28905 is a WebKit memory-handling vulnerability in Apple platforms. Apple states that the issue was addressed with improved memory handling and that processing maliciously crafted web content may lead to an unexpected process crash. The flaw affects Safari/WebKit on Safari 26.5, iOS 26.5, iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, and visionOS 26.5. Publicly provided details do not identify the specific vulnerable function or code path, only that the bug resides in WebKit while handling crafted web content.

For your environment

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ANALYST BRIEF

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.

Successful exploitation can cause the targeted WebKit-related process, including Safari or another web-content processing context, to crash unexpectedly, resulting in denial of service for the affected browsing or embedded web-content session. Based on the provided content, there is no verified indication that this CVE enables code execution, sandbox escape, or information disclosure; the documented impact is process crash only.

Mitigation

If you can’t patch tonight, do this now.

Until patches are applied, reduce exposure to untrusted web content and limit browsing to trusted sites where feasible. In managed environments, minimize use of embedded WebKit views with untrusted content and apply standard browser-hardening controls. No vendor-specific workaround beyond updating is provided in the supplied content.

Remediation

Patch, then assume compromise.

Apply Apple's fixes by updating to Safari 26.5, iOS 26.5, iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, and visionOS 26.5, or later versions that include the WebKit fix for CVE-2026-28905.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

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.

VendorProductType

AppleIosoperating_system

AppleIpadosoperating_system

AppleIphone Osoperating_system

AppleMacosoperating_system

AppleMacos Tahoeoperating_system

AppleTvosoperating_system

AppleVisionosoperating_system

WebkitgtkWebkit2gtk3application

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

14 SOURCESView more in app

apple supportNews

May 13, 2026

About the security content of Safari 26.5 - Apple Support

A memory handling issue in Apple web content processing that may cause an unexpected process crash via maliciously crafted web content.

apple supportNews

May 13, 2026

About the security content of Safari 26.5 - Apple Support

A memory handling issue in Apple software for macOS Sonoma and macOS Sequoia where maliciously crafted web content may cause an unexpected process crash.

apple supportNews

May 11, 2026

About the security content of macOS Tahoe 26.5 - Apple Support (CA)

A web content handling vulnerability in macOS Tahoe that may lead to an unexpected process crash.

apple supportNews

May 11, 2026

About the security content of tvOS 26.5 - Apple Support

A web content processing vulnerability in Apple TV software that could cause an unexpected process crash.

+5 more in the timeline

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity3