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Mallory
High

Sandbox permissions issue leading to sandbox escape in Apple Sandbox

IdentifiersCVE-2026-20628CWE-269

Information currently not available to provide a detailed vulnerability description beyond Apple’s advisory-level summary. Apple reports a permissions issue in the Sandbox component that was addressed with additional restrictions. The issue could allow a malicious application to break out of its sandbox. The fix is shipped in watchOS 26.3, tvOS 26.3, macOS Tahoe 26.3, macOS Sonoma 14.8.4, macOS Sequoia 15.7.4, iOS 18.7.5/iPadOS 18.7.5, visionOS 26.3, and iOS 26.3/iPadOS 26.3.

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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.

Sandbox escape: a malicious app may be able to operate outside its assigned sandbox restrictions, potentially enabling access to resources or capabilities that should be denied by the sandbox policy. Further impact details are not available in the provided content.

Mitigation

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

No specific workaround is described in the provided content. Risk reduction measures include restricting installation/execution of untrusted apps (e.g., allowlisting/MDM controls) until patches can be deployed.

Remediation

Patch, then assume compromise.

Apply the vendor updates that include the fix for CVE-2026-20628: watchOS 26.3, tvOS 26.3, macOS Tahoe 26.3, macOS Sonoma 14.8.4, macOS Sequoia 15.7.4, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3.
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
AppleIpadosoperating_system
AppleIphone Osoperating_system
AppleMacosoperating_system
AppleTvosoperating_system
AppleVisionosoperating_system
AppleWatchosoperating_system

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

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.
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 activity9

Community discussion across Reddit, Mastodon, and other social sources.