EUVD-2026-78020
GHSA-vcfj-5w9c-j2jw
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Description indicates a local app reading files, so AV:L and PR:L (attacker-controlled app running on host); confidentiality-only high impact, no integrity/availability effect.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
6DescriptionNVD
A validation issue was addressed with improved input sanitization. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to read arbitrary files.
AnalysisAI
Arbitrary file read in Apple macOS allows a locally running malicious or compromised application to bypass path-handling input sanitization and read files the operating system should have denied it, exposing potentially sensitive user or system data. Exploitation requires the attacker to already have code execution on the host - a local, low-privileged app context (PR:L) with no further user interaction - and the impact is confined to confidentiality, with no integrity or availability effect. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires a malicious or compromised application already running on the macOS host (local app context, PR:L, no user interaction beyond installing/running the app). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a moderate-severity local information-disclosure flaw, not an urgent priority. … 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 patches are available: upgrade to macOS Sequoia 15.8, macOS Tahoe 26.7, or macOS Golden Gate 27, as applicable to your release train, following the advisories at https://support.apple.com/en-us/149035, https://support.apple.com/en-us/149042, and https://support.apple.com/en-us/149043; patched hosts are not affected, and prioritization can be moderate given the low EPSS and the absence of known public exploit code. … Detailed patch versions, workarounds, and compensating controls in full report. |
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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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