A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.
Problem type
- Processing maliciously crafted web content may lead to an unexpected Safari crash
Affected products
Apple
< 26.6 - AFFECTED
< 26.6 - AFFECTED
< 26.6 - AFFECTED
< 26.6 - AFFECTED
< 26.6 - AFFECTED
References
https://support.apple.com/en-us/128066
https://support.apple.com/en-us/128067
https://support.apple.com/en-us/128068
https://support.apple.com/en-us/128070
https://support.apple.com/en-us/128073
GitHub Security Advisories
GHSA-v4g2-v8g7-xcrm
A use-after-free issue was addressed with improved memory management. This issue is fixed in...
https://github.com/advisories/GHSA-v4g2-v8g7-xcrmA use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.
https://nvd.nist.gov/vuln/detail/CVE-2026-64783
https://support.apple.com/en-us/128066
https://support.apple.com/en-us/128067
https://support.apple.com/en-us/128068
https://support.apple.com/en-us/128070
https://support.apple.com/en-us/128073
https://github.com/advisories/GHSA-v4g2-v8g7-xcrm
JSON source
https://cveawg.mitre.org/api/cve/CVE-2026-64783Click to expand
{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-64783",
"assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
"assignerShortName": "apple",
"dateUpdated": "2026-07-27T20:14:39.670Z",
"dateReserved": "2026-07-20T18:11:03.397Z",
"datePublished": "2026-07-27T20:14:39.670Z",
"state": "PUBLISHED"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
"shortName": "apple",
"dateUpdated": "2026-07-27T20:14:39.670Z"
},
"descriptions": [
{
"lang": "en",
"value": "A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash."
}
],
"affected": [
{
"vendor": "Apple",
"product": "Safari",
"versions": [
{
"version": "0",
"status": "affected",
"versionType": "custom",
"lessThan": "26.6"
}
]
},
{
"vendor": "Apple",
"product": "iOS and iPadOS",
"versions": [
{
"version": "0",
"status": "affected",
"versionType": "custom",
"lessThan": "26.6"
}
]
},
{
"vendor": "Apple",
"product": "macOS",
"versions": [
{
"version": "0",
"status": "affected",
"versionType": "custom",
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}
]
},
{
"vendor": "Apple",
"product": "visionOS",
"versions": [
{
"version": "0",
"status": "affected",
"versionType": "custom",
"lessThan": "26.6"
}
]
},
{
"vendor": "Apple",
"product": "watchOS",
"versions": [
{
"version": "0",
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}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "Processing maliciously crafted web content may lead to an unexpected Safari crash"
}
]
}
],
"references": [
{
"url": "https://support.apple.com/en-us/128066"
},
{
"url": "https://support.apple.com/en-us/128067"
},
{
"url": "https://support.apple.com/en-us/128068"
},
{
"url": "https://support.apple.com/en-us/128070"
},
{
"url": "https://support.apple.com/en-us/128073"
}
]
}
}
}