CVE-2026-43813: A maliciously crafted app may be able to bypass code signing enforcement in Apple iOS and iPadOS
A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. A maliciously crafted app may be able to bypass code signing enforcement.
AI Analysis
Technical Summary
This vulnerability involves a validation flaw in Apple iOS and iPadOS that could allow a maliciously crafted application to bypass the code signing enforcement mechanism. Code signing enforcement is critical to ensuring that only trusted and verified applications run on the device. The issue was resolved by improving input sanitization. The fix is included in iOS 26.6 and iPadOS 26.6, as well as macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6.
Potential Impact
If exploited, this vulnerability could allow an attacker to run unauthorized or malicious code on affected devices by bypassing the code signing enforcement. This could lead to compromise of confidentiality and integrity of the system. The CVSS score of 7.1 reflects a high impact on confidentiality and integrity with no impact on availability. There are no known exploits in the wild currently.
Mitigation Recommendations
A fix is available in iOS 26.6 and iPadOS 26.6. Users and administrators should update affected devices to these versions or later to remediate this vulnerability. No additional mitigation steps are indicated beyond applying the official update.
CVE-2026-43813: A maliciously crafted app may be able to bypass code signing enforcement in Apple iOS and iPadOS
Description
A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. A maliciously crafted app may be able to bypass code signing enforcement.
CVSS v3.1
Score 7.1high
Affected software
Apple
iOS and iPadOS
Apple
macOS
Apple
tvOS
Apple
visionOS
Apple
watchOS
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a validation flaw in Apple iOS and iPadOS that could allow a maliciously crafted application to bypass the code signing enforcement mechanism. Code signing enforcement is critical to ensuring that only trusted and verified applications run on the device. The issue was resolved by improving input sanitization. The fix is included in iOS 26.6 and iPadOS 26.6, as well as macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6.
Potential Impact
If exploited, this vulnerability could allow an attacker to run unauthorized or malicious code on affected devices by bypassing the code signing enforcement. This could lead to compromise of confidentiality and integrity of the system. The CVSS score of 7.1 reflects a high impact on confidentiality and integrity with no impact on availability. There are no known exploits in the wild currently.
Mitigation Recommendations
A fix is available in iOS 26.6 and iPadOS 26.6. Users and administrators should update affected devices to these versions or later to remediate this vulnerability. No additional mitigation steps are indicated beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:27.821Z
- State
- PUBLISHED
Threat ID: 6a67c1bc9c2644c7f8cb1198
Added to database: 07/27/2026, 20:38:20 UTC
Last enriched: 07/29/2026, 23:54:34 UTC
Last updated: 09/11/2026, 07:31:53 UTC
Views: 69
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