CVE-2026-28820

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "macOS", "source": "cna", "vendor": "Apple"}, "product": "macos", "vendor": "apple"}], "analysis": {"en": {"generated_at": "2026-03-26T21:48:36.439803+00:00", "value": {"mitigation_remediation": ["Upgrade macOS to Tahoe\u202f26.4 or later"], "summary": {"action": "Apply Patch", "impact": "Confidential user data exposure"}, "threat_synthesis": {"affected_systems": "Apple macOS users running versions older than macOS Tahoe 26.4 are potentially vulnerable; the issue was fixed in that release.", "description_and_impact": "An application may read sensitive user data due to inadequate access checks, resulting in a breach of confidentiality. The weakness is an information exposure flaw (CWE\u2011200).", "risk_and_exploitability": "The vulnerability scores a medium CVSS score of 5.5 and has a low EPSS probability (<\u202f1\u202f%). It is not included in the CISA KEV catalog. An attacker would need a malicious or compromised application or a local user with sufficient privileges to benefit from the flaw, which is inferred from the description but not explicitly stated in the advisory."}}}}, "created": "2026-03-25T11:36:44.746679+00:00", "title": "macOS Sensitive User Data Exposure via Improper Access Checks", "updated": "2026-03-27T09:20:02.297662+00:00", "vendors": ["apple", "apple$PRODUCT$macos"]}