EUVD-2026-77973
GHSA-gwxp-vrq7-3wvm
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Local malicious app running as an ordinary user (AV:L/PR:L) with no interaction abuses an access-control gap to read sensitive data (C:H); no integrity or availability impact.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
6DescriptionNVD
An authorization issue was addressed with improved access control. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to access sensitive user data.
AnalysisAI
Authorization bypass in Apple macOS allows a locally-running app to read sensitive user data without the user's consent, affecting macOS versions below Sequoia 15.8, below Tahoe 26.7, and below Golden Gate 27. Exploitation requires an attacker to first get a malicious or compromised application onto the machine and running under a standard, non-administrative user account (CVSS 3.1 AV:L/PR:L/UI:N), so this is not remotely reachable and no user interaction is needed once that app executes. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a locally-running app on the target macOS system (AV:L) executing with low, non-administrative user privileges (PR:L); no user interaction is needed once the app runs (UI:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but moderate-severity local information-disclosure flaw in Apple macOS, and the signals are consistent rather than conflicting. … 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: macOS Sequoia 15.8, macOS Tahoe 26.7, and macOS Golden Gate 27 - upgrade to the release that corresponds to the affected branch, following the Apple security advisories at https://support.apple.com/en-us/149035, https://support.apple.com/en-us/149042, and https://support.apple.com/en-us/149043. … Detailed patch versions, workarounds, and compensating controls in full report. |
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