Sensitive user data access in Apple Accounts authorization handling
CVE-2026-28877 is an authorization flaw in the Apple Accounts component. Apple states the issue was caused by improper state management and that it was addressed with improved state management. Successful exploitation may allow a local app to bypass intended authorization controls and access sensitive user data. Apple has not publicly disclosed the specific vulnerable function or code path.
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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.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An information disclosure vulnerability in Accounts that may allow an app to access sensitive user data.
An authorization issue that may allow an app to access sensitive user data on affected Apple devices.
An authorization issue in macOS Sequoia that could allow an app to access sensitive user data.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.