Medium

Installed App Enumeration in Apple Crash Reporter

IdentifiersCVE-2026-28878CWE-200· Exposure of Sensitive Information…

CVE-2026-28878 is a privacy vulnerability in Apple Crash Reporter. According to Apple, an app may be able to enumerate a user's installed apps because sensitive data was exposed through Crash Reporter. Apple states the issue was addressed by removing sensitive data. The vulnerability affects multiple Apple platforms, including iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.7, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, and watchOS 26.4.

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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 discover which applications are installed on the target device. This is a privacy impact that can expose user profiling information, reveal security-sensitive or confidential app usage, and provide reconnaissance data useful for fingerprinting, targeting, or tailoring follow-on attacks.

Mitigation

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

If patching cannot be performed immediately, reduce exposure by limiting installation and execution of untrusted or unnecessary apps, especially on managed devices. Enterprise controls such as application allowlisting, MDM-enforced software restrictions, and least-privilege app deployment can reduce the likelihood of a malicious local app exploiting the issue. No complete mitigation short of applying Apple's updates is currently available from the provided information.

Remediation

Patch, then assume compromise.

Apply the vendor-provided updates that fix CVE-2026-28878: iOS 18.7.7, iPadOS 18.7.7, iOS 26.4, iPadOS 26.4, macOS Sequoia 15.7.7, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, or watchOS 26.4, as appropriate for the affected device. Apple indicates the issue was fixed by removing sensitive data from Crash Reporter.

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.

ACTIVITY FEED

Recent activity

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

13 SOURCESView more in app

handlers diary fullNews

May 11, 2026

Apple Patches Everything - SANS Internet Storm Center

An information disclosure vulnerability in Crash Reporter that may allow an app to enumerate a user's installed apps.

apple supportNews

May 11, 2026

About the security content of macOS Sequoia 15.7.7 - Apple Support

A privacy vulnerability in macOS Sequoia that may allow an app to enumerate a user's installed applications.

apple supportNews

May 11, 2026

About the security content of macOS Sequoia 15.7.7 - Apple Support

A privacy issue in macOS Sequoia that may allow an app to enumerate a user's installed apps.

apple supportNews

Apr 1, 2026

About the security content of iOS 18.7.7 and iPadOS 18.7.7 - Apple Support

A privacy issue that may allow an app to enumerate a user's installed apps.

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 activity9