EUVD-2026-78000
GHSA-97m2-wp8w-wr6q
Severity by source
AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Local malicious app run by the user (AV:L/PR:N/UI:R); real sandbox-boundary crossing justifies S:C; escape yields broad read access (C:H) with limited integrity (I:L) and no availability impact.
Primary rating from Vendor (apple).
CVSS VectorVendor: apple
Lifecycle Timeline
7DescriptionCVE.org
An access issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Golden Gate 27, macOS Tahoe 26.7. An app may be able to bypass sandbox restrictions.
AnalysisAI
Sandbox escape in Apple macOS lets a malicious application break out of its App Sandbox and reach resources beyond its granted entitlements, affecting macOS releases prior to Tahoe 26.7 and prior to Golden Gate 27. The flaw is local in nature (CVSS:3.1/AV:L, PR:N, UI:R, S:C) - a remote attacker cannot trigger it directly, but exploitation requires convincing a user to launch a malicious or untrusted application on the target Mac, after which the app's scope of access changes (S:C) with high confidentiality impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to get a malicious application onto the system and have the user run it (UI:R) on macOS versions prior to Golden Gate 27 or Tahoe 26.7; the app then bypasses macOS sandbox restrictions to access resources outside its entitlement grant. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a macOS sandbox-escape flaw where a malicious application can break out of the sandbox to reach resources beyond its entitlements. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patch: Apple fixed the sandbox bypass in macOS Tahoe 26.7 and macOS Golden Gate 27 - apply the macOS security update that brings the endpoint to either of these builds (see https://support.apple.com/en-us/149035 and https://support.apple.com/en-us/149042), and prioritize endpoints where users routinely install or launch third-party or unsigned applications. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all macOS endpoints running versions prior to Tahoe 26.7 and Golden Gate 27 and prioritize them for patching, especially for users with access to sensitive data. …
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External POC / Exploit Code
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