CVE-2026-28899: An app may bypass Gatekeeper checks in Apple macOS
CVE-2026-28899 is a logic issue in Apple macOS that allows an app to bypass Gatekeeper checks. The vulnerability has been addressed with improved checks and fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.6, and macOS Tahoe 26.7.
AI Analysis
Technical Summary
This vulnerability involves a logic flaw in macOS Gatekeeper, which is a security feature designed to ensure that only trusted software runs on the system. Due to the flaw, an app may bypass these Gatekeeper checks, potentially allowing untrusted or malicious software to execute. Apple has fixed this issue by improving the Gatekeeper checks in the specified macOS versions.
Potential Impact
An attacker could exploit this vulnerability to run applications that bypass Gatekeeper's security checks, potentially increasing the risk of executing untrusted or malicious code on affected macOS systems. However, there is no indication of active exploitation in the wild.
Mitigation Recommendations
Apply the official fixes by updating macOS to one of the fixed versions: macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.6, or macOS Tahoe 26.7. These updates include improved Gatekeeper checks that address the logic issue.
CVE-2026-28899: An app may bypass Gatekeeper checks in Apple macOS
Description
CVE-2026-28899 is a logic issue in Apple macOS that allows an app to bypass Gatekeeper checks. The vulnerability has been addressed with improved checks and fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.6, and macOS Tahoe 26.7.
Affected software
Apple
macOS
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a logic flaw in macOS Gatekeeper, which is a security feature designed to ensure that only trusted software runs on the system. Due to the flaw, an app may bypass these Gatekeeper checks, potentially allowing untrusted or malicious software to execute. Apple has fixed this issue by improving the Gatekeeper checks in the specified macOS versions.
Potential Impact
An attacker could exploit this vulnerability to run applications that bypass Gatekeeper's security checks, potentially increasing the risk of executing untrusted or malicious code on affected macOS systems. However, there is no indication of active exploitation in the wild.
Mitigation Recommendations
Apply the official fixes by updating macOS to one of the fixed versions: macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.6, or macOS Tahoe 26.7. These updates include improved Gatekeeper checks that address the logic issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-03-03T16:36:03.983Z
- State
- PUBLISHED
Threat ID: 6aa860ee55bf5e2cf59d2115
Added to database: 09/14/2026, 21:02:38 UTC
Last enriched: 09/14/2026, 22:22:14 UTC
Last updated: 09/15/2026, 03:06:59 UTC
Views: 3
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