Description
A race condition was addressed with additional validation. This issue is fixed in macOS Sequoia 15.1. An app may be able to break out of its sandbox.
Published: 2026-04-02
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: Sandbox escape leading to potential privilege escalation
Action: Immediate Patch
AI Analysis

Impact

A race condition can allow an application to escape its sandbox. The flaw was corrected with additional validation and fixed in macOS Sequoia 15.1. If exploited, the attacker could gain privileges beyond the sandbox, enabling execution of arbitrary code.

Affected Systems

Apple macOS systems, particularly those running versions prior to Sequoia 15.1. The vulnerability impacts the operating system’s sandbox enforcement mechanism. Affected versions are all earlier releases of macOS before the 15.1 update.

Risk and Exploitability

The CVSS score of 7.5 indicates high severity. EPSS under 1% suggests a low probability of current exploitation. The issue is not listed as a known exploited vulnerability, but its high severity and potential to bypass sandbox justify urgent remediation. Attackers would need to trigger the race condition within the sandbox environment, which could be feasible in some contexts.

Generated by OpenCVE AI on April 3, 2026 at 22:26 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the macOS Sequoia 15.1 update or later
  • Upgrade to macOS Sequoia 15.1 if not already running it
  • Enable automatic system updates to receive timely security patches
  • If an earlier version must remain in use, monitor Apple’s security advisory for any additional mitigations
  • Review applications for sandbox enforcement compliance

Generated by OpenCVE AI on April 3, 2026 at 22:26 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

References
History

Tue, 07 Apr 2026 08:00:00 +0000

Type Values Removed Values Added
Title Race Condition Allows Sandbox Escape on macOS

Fri, 03 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

Fri, 03 Apr 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Vendors & Products Apple
Apple macos

Thu, 02 Apr 2026 20:30:00 +0000

Type Values Removed Values Added
Description A race condition was addressed with additional validation. This issue is fixed in macOS Sequoia 15.1. An app may be able to break out of its sandbox.
Weaknesses CWE-362
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-04-02T19:49:19.309Z

Reserved: 2024-07-10T17:11:04.709Z

Link: CVE-2024-40849

cve-icon Vulnrichment

Updated: 2026-04-02T19:47:21.293Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-02T19:17:57.313

Modified: 2026-04-03T19:39:14.597

Link: CVE-2024-40849

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-07T07:55:34Z

Weaknesses