Medium

Sensitive User Data Access in Apple Sandbox Profiles

IdentifiersCVE-2026-20678CWE-863

CVE-2026-20678 is an authorization flaw in Apple Sandbox Profiles affecting iOS 26.3, iPadOS 26.3, iOS 18.7.5, and iPadOS 18.7.5. Apple states that, due to an authorization issue, an app may be able to access sensitive user data. The issue was remediated through improved state management. The available advisory text does not identify the exact vulnerable code path or API, but the vulnerability is consistently described as a sandbox/profile authorization failure that can permit unauthorized access to protected user data from an app context.

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 allows a local app to access sensitive user data that should not be available under the intended sandbox and authorization model. This is a confidentiality/privacy impact. Based on the advisory language, the primary consequence is unauthorized data exposure rather than code execution or privilege escalation to root.

Mitigation

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

No vendor workaround is provided in the supplied content. Until patching, reduce exposure by restricting installation and execution of untrusted or unnecessary apps, enforcing mobile device management controls where applicable, minimizing app permissions and sensitive data availability on affected devices, and prioritizing updates on supported devices.

Remediation

Patch, then assume compromise.

Apply Apple's fixed releases: iOS 26.3 or later, iPadOS 26.3 or later, iOS 18.7.5 or later, and iPadOS 18.7.5 or later. Apple indicates the issue was fixed by improved state management in Sandbox Profiles.

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

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

ACTIVITY FEED

Recent activity

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

6 SOURCESView more in app

cyberthroneNews

Mar 26, 2026

Apple Patches numerous vulnerabilities across its products - TheCyberThrone

A medium-severity Notes logic issue that may allow discovery of deleted notes.

handlers diary fullNews

Feb 11, 2026

Apple Patches Everything: February 2026 - SANS ISC

Sandbox Profiles issue enabling access to sensitive user data.

apple supportNews

Feb 11, 2026

About the security content of iOS 26.3 and iPadOS 26.3 - Apple Support

Deleted notes disclosure due to logic/state management issue; fixed with improved state management.

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