CVE-2026-28838: An app may be able to break out of its sandbox in Apple macOS
A permissions issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to break out of its sandbox.
AI Analysis
Technical Summary
This vulnerability involves a permissions issue in Apple macOS sandboxing that could allow an application to escape its sandbox environment. Apple fixed the issue by implementing additional sandbox restrictions in macOS Sequoia 15.7.5, Sonoma 14.8.5, and Tahoe 26.4. The CVSS 3.1 base score is 5.3, reflecting a network attack vector with low complexity, no privileges required, no user interaction, and limited confidentiality impact. There is no indication of integrity or availability impact. No known exploits have been reported.
Potential Impact
An attacker could potentially run a malicious app that escapes the sandbox restrictions, potentially accessing resources or data outside the intended sandbox boundary. The impact is limited to confidentiality loss, with no reported integrity or availability effects. No active exploitation has been observed.
Mitigation Recommendations
Apple has released official fixes in macOS Sequoia 15.7.5, Sonoma 14.8.5, and Tahoe 26.4 that address this vulnerability by adding additional sandbox restrictions. Users and administrators should apply these updates to remediate the issue. Patch status is confirmed by the vendor advisory embedded in the description.
CVE-2026-28838: An app may be able to break out of its sandbox in Apple macOS
Description
A permissions issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to break out of its sandbox.
CVSS v3.1
Score 5.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a permissions issue in Apple macOS sandboxing that could allow an application to escape its sandbox environment. Apple fixed the issue by implementing additional sandbox restrictions in macOS Sequoia 15.7.5, Sonoma 14.8.5, and Tahoe 26.4. The CVSS 3.1 base score is 5.3, reflecting a network attack vector with low complexity, no privileges required, no user interaction, and limited confidentiality impact. There is no indication of integrity or availability impact. No known exploits have been reported.
Potential Impact
An attacker could potentially run a malicious app that escapes the sandbox restrictions, potentially accessing resources or data outside the intended sandbox boundary. The impact is limited to confidentiality loss, with no reported integrity or availability effects. No active exploitation has been observed.
Mitigation Recommendations
Apple has released official fixes in macOS Sequoia 15.7.5, Sonoma 14.8.5, and Tahoe 26.4 that address this vulnerability by adding additional sandbox restrictions. Users and administrators should apply these updates to remediate the issue. Patch status is confirmed by the vendor advisory embedded in the description.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-03-03T16:36:03.969Z
- Cvss Version
- null
- State
- PUBLISHED
Threat ID: 69c333ddf4197a8e3baaeb05
Added to database: 03/25/2026, 01:01:17 UTC
Last enriched: 05/11/2026, 01:42:44 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 85
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