Medium

Passcode-based bypass of biometrics-gated Protected Apps in Apple App Protection

IdentifiersCVE-2026-28895CWE-287

CVE-2026-28895 is an App Protection vulnerability in Apple iOS and iPadOS that was fixed in iOS 26.4 and iPadOS 26.4. According to Apple's advisory, when Stolen Device Protection is enabled, an attacker with physical access to the device may be able to access biometrics-gated Protected Apps using the device passcode. Apple states the issue was addressed with improved checks. Based on the vendor description, the flaw is an authentication or protection-enforcement bypass in the App Protection logic governing access to apps that should require biometric authentication under Stolen Device Protection.

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 person with physical possession of a targeted iPhone or iPad to bypass the intended biometric gate protecting certain apps and gain unauthorized access to those Protected Apps using only the passcode. This weakens the security guarantees of Stolen Device Protection and can expose app contents and associated sensitive user data that should have remained restricted behind biometric verification.

Mitigation

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

Until patching is complete, reduce exposure by maintaining strict physical control of devices, minimizing opportunities for device theft or temporary hands-on access, and using Stolen Device Protection and strong passcodes as defense-in-depth even though this issue weakens the biometric gate for Protected Apps. Because the vulnerability specifically requires physical access, organizational mitigations should focus on device custody and rapid response for lost or stolen devices.

Remediation

Patch, then assume compromise.

Apply Apple's fix by updating affected devices to iOS 26.4 or iPadOS 26.4, where Apple states the issue was resolved through improved checks. Standard remediation is to ensure supported iPhone and iPad devices are fully updated to the vendor-patched release.

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

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

ACTIVITY FEED

Recent activity

4 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

4 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

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 activity4