{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-28857", "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "state": "PUBLISHED", "assignerShortName": "apple", "dateReserved": "2026-03-03T16:36:03.972Z", "datePublished": "2026-03-25T00:31:54.140Z", "dateUpdated": "2026-03-25T00:31:54.140Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "description": "Processing maliciously crafted web content may lead to an unexpected process crash"}]}], "affected": [{"vendor": "Apple", "product": "Safari", "versions": [{"version": "0", "status": "affected", "lessThan": "26.4", "versionType": "custom"}]}, {"vendor": "Apple", "product": "iOS and iPadOS", "versions": [{"version": "0", "status": "affected", "lessThan": "26.4", "versionType": "custom"}]}, {"vendor": "Apple", "product": "macOS", "versions": [{"version": "0", "status": "affected", "lessThan": "26.4", "versionType": "custom"}]}, {"vendor": "Apple", "product": "visionOS", "versions": [{"version": "0", "status": "affected", "lessThan": "26.4", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash."}], "references": [{"url": "https://support.apple.com/en-us/126792"}, {"url": "https://support.apple.com/en-us/126794"}, {"url": "https://support.apple.com/en-us/126799"}, {"url": "https://support.apple.com/en-us/126800"}], "providerMetadata": {"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "shortName": "apple", "dateUpdated": "2026-03-25T00:31:54.140Z"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash."}], "id": "CVE-2026-28857", "lastModified": "2026-03-25T15:41:33.977", "metrics": {}, "published": "2026-03-25T01:17:09.817", "references": [{"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/126792"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/126794"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/126799"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/126800"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Awaiting Analysis"}

{}

{"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": "iOS and iPadOS", "source": "cna", "vendor": "Apple"}, "product": "ios_and_ipados", "vendor": "apple"}, {"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"}, {"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": "Safari", "source": "cna", "vendor": "Apple"}, "product": "safari", "vendor": "apple"}, {"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": "visionOS", "source": "cna", "vendor": "Apple"}, "product": "visionos", "vendor": "apple"}], "analysis": {"en": {"generated_at": "2026-03-25T02:47:32.388989+00:00", "value": {"mitigation_remediation": ["Apply the latest OS and browser update that includes version 26.4 for Safari, iOS, iPadOS, macOS Tahoe, and visionOS.", "Until the update is installed, avoid loading untrusted web content that could trigger a crash."], "summary": {"action": "Immediate Patch", "impact": "Denial of Service (Process Crash)"}, "threat_synthesis": {"affected_systems": "Apple Safari, Safari for iOS, Safari for iPadOS, macOS, and visionOS are affected. The vulnerability is fixed in version 26.4 for all four families. Any earlier releases remain vulnerable.", "description_and_impact": "An internal memory handling bug may cause Safari or its underlying web engines on iOS, iPadOS, macOS, and visionOS to crash when processing malicious web content. The predetermined crash terminates the affected process, resulting in a denial of service. This weakness is tied to improper memory management, which may involve out\u2011of\u2011bounds or corrupted memory usage.", "risk_and_exploitability": "The CVSS score is not supplied, but a forced crash indicates a potential denial of service. EPSS is unavailable, and the issue is not listed in the CISA KEV catalog, suggesting no confirmed active exploitation. Attackers would most likely need to supply crafted web content to a target's browser; remote code execution is not documented. The attack vector appears client\u2011side, so the risk is primarily to the user or the process\u2019s resident services."}}}}, "created": "2026-03-25T11:36:50.492522+00:00", "title": "Safari and Apple OS Crash from Malicious Web Content", "updated": "2026-03-25T20:56:34.004644+00:00", "vendors": ["apple", "apple$PRODUCT$ios_and_ipados", "apple$PRODUCT$macos", "apple$PRODUCT$safari", "apple$PRODUCT$visionos"], "weaknesses": ["CWE-787"]}