EUVD-2026-78004
GHSA-8v8q-vg4w-q828
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Local malicious app with no special privileges (AV:L/PR:N); a self-contained EoP app needs no user interaction (UI:N vs vendor UI:R); privilege elevation supports high impact.
Primary rating from Vendor (apple).
CVSS VectorVendor: apple
Lifecycle Timeline
6DescriptionCVE.org
A path handling issue was addressed with improved validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to gain elevated privileges.
AnalysisAI
Insufficient path validation in Apple macOS lets a malicious application already running on a Mac escalate to elevated privileges, achieving high confidentiality and integrity impact. The issue is confirmed in macOS releases prior to Golden Gate 27, Sequoia 15.8, and Tahoe 26.7, and Apple has shipped fixes in those three versions (advisories support.apple.com/en-us/149035, 149042, 149043). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires local code execution on the target Mac: the attacker must already be able to run an application on the system (e.g., a downloaded/installed malicious or trojanized app), so this is not remotely exploitable. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but not urgent local privilege-escalation issue in Apple macOS. … 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: upgrade to macOS Sequoia 15.8, macOS Tahoe 26.7, or macOS Golden Gate 27, applying the appropriate Apple security update documented at https://support.apple.com/en-us/149035, https://support.apple.com/en-us/149042, or https://support.apple.com/en-us/149043; because the fixed versions are branch-specific, confirm the device's current macOS branch before selecting the update. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all macOS endpoints and identify systems running versions prior to Golden Gate 27, Sequoia 15.8, and Tahoe 26.7; alert IT, security, and endpoint management teams, verify EDR coverage, and prioritize high-risk users such as executives, finance, engineering, and administrators. …
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Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
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