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Mallory
High

App Privacy Report Logging Bypass in Apple Privacy

IdentifiersCVE-2026-28873CWE-863· Incorrect Authorization

CVE-2026-28873 is a privacy/control-bypass issue in Apple’s Privacy component affecting iOS and iPadOS. According to the provided advisory text, a malicious app may be able to circumvent App Privacy Report logging. Apple states the issue was addressed with additional entitlement checks, indicating the flaw involved insufficient enforcement of entitlement-based access restrictions around the App Privacy Report logging mechanism. The vulnerability is fixed in iOS 18.7.9, iPadOS 18.7.9, iOS 26.4, and iPadOS 26.4.

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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 an app to avoid having relevant activity recorded in App Privacy Report. This undermines the integrity and completeness of privacy transparency and auditing features available to users, reducing visibility into app behavior and potentially concealing privacy-sensitive access patterns or network activity that would otherwise be surfaced through App Privacy Report logging.

Mitigation

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

If immediate patching is not possible, reduce exposure by limiting installation and execution of untrusted or unnecessary apps, especially those requesting broad privacy-sensitive capabilities. Use only vetted applications from trusted sources and monitor device/app behavior through available mobile device management and application control mechanisms. No vendor-provided workaround beyond applying the security update is present in the supplied content.

Remediation

Patch, then assume compromise.

Update affected devices to iOS 18.7.9 or iPadOS 18.7.9, or to iOS 26.4 or iPadOS 26.4, where Apple states the issue is fixed through additional entitlement checks.
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.

What this page doesn’t show

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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 activity1

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