cve-2026-28946
MEDIUM CVSS 6.5 nvd
Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5, macOS Tahoe 26.5. Processing maliciously crafted web content may lead to an unexpected Safari crash.
Timeline
- Published
- 2026-05-11
- Last Modified
- 2026-10-26
CVSS Details
- Attack Vector
- NETWORK
- Attack Complexity
- LOW
- Privileges Required
- NONE
Affected Products
- apple macos
Weaknesses (CWE)
CVSS metrics
| Version | Base | Severity | Vector | Exploitability | Impact | Source |
|---|---|---|---|---|---|---|
| 3.1 | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| 3.1 | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8 | 5.9 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
CPE configurations
OR
| CPE | Version range | Vulnerable |
|---|---|---|
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
>= 26.0, < 26.5 | yes |
NVD metadata
- NVD status
- Modified
- Source identifier
product-security@apple.com
References
- https://support.apple.com/en-us/127115 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127121
- https://access.redhat.com/errata/RHSA-2026:25918
- https://access.redhat.com/errata/RHSA-2026:25927
- https://access.redhat.com/errata/RHSA-2026:27728
- https://access.redhat.com/errata/RHSA-2026:27785
- https://access.redhat.com/errata/RHSA-2026:27804
- https://access.redhat.com/errata/RHSA-2026:28114
- https://access.redhat.com/errata/RHSA-2026:28146
- https://access.redhat.com/errata/RHSA-2026:28147
- https://access.redhat.com/errata/RHSA-2026:28148
- https://access.redhat.com/security/cve/CVE-2026-28946
- https://bugzilla.redhat.com/show_bug.cgi?id=2471790
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28946.json
Linked Vulnerabilities
{
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"datePublished": "2026-05-11T21:18:55.740",
"dateUpdated": "2026-10-26T18:10:00.173",
"description": "A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5, macOS Tahoe 26.5. Processing maliciously crafted web content may lead to an unexpected Safari crash.",
"id": "CVE-2026-28946",
"raw": {
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{
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}
]
},
{
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"vendor": "Apple",
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}
]
}
],
"source": "product-security@apple.com"
},
{
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"cpes": [
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"packageName": "webkitgtk4",
"product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
"vendor": "Red Hat",
"versions": [
{
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"status": "unaffected",
"version": "0:2.52.4-1.el7_9",
"versionType": "rpm"
}
]
},
{
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"cpes": [
"cpe:/a:redhat:enterprise_linux:8"
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"defaultStatus": "affected",
"packageName": "webkit2gtk3",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
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"status": "unaffected",
"version": "0:2.52.4-1.el8_10",
"versionType": "rpm"
}
]
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{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
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],
"defaultStatus": "affected",
"packageName": "webkit2gtk3",
"product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
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"status": "unaffected",
"version": "0:2.52.4-1.el8_4",
"versionType": "rpm"
}
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},
{
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"cpes": [
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"defaultStatus": "affected",
"packageName": "webkit2gtk3",
"product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
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"version": "0:2.52.4-1.el8_4",
"versionType": "rpm"
}
]
},
{
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"cpes": [
"cpe:/a:redhat:rhel_aus:8.6"
],
"defaultStatus": "affected",
"packageName": "webkit2gtk3",
"product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
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"version": "0:2.52.4-1.el8_6",
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]
},
{
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"cpes": [
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"defaultStatus": "affected",
"packageName": "webkit2gtk3",
"product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
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"status": "unaffected",
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{
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"cpes": [
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],
"defaultStatus": "affected",
"packageName": "webkit2gtk3",
"product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
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"status": "unaffected",
"version": "0:2.52.4-1.el8_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.8"
],
"defaultStatus": "affected",
"packageName": "webkit2gtk3",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
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"status": "unaffected",
"version": "0:2.52.4-1.el8_8",
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}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "webkit2gtk3",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
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"status": "unaffected",
"version": "0:2.52.4-1.el9_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2"
],
"defaultStatus": "affected",
"packageName": "webkit2gtk3",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
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"status": "unaffected",
"version": "0:2.52.4-1.el9_2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.4"
],
"defaultStatus": "affected",
"packageName": "webkit2gtk3",
"product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
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"status": "unaffected",
"version": "0:2.52.4-1.el9_4",
"versionType": "rpm"
}
]
},
{
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"cpes": [
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],
"defaultStatus": "affected",
"packageName": "webkit2gtk3",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"vendor": "Red Hat",
"versions": [
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"version": "0:2.52.4-1.el9_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
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],
"defaultStatus": "unknown",
"packageName": "webkitgtk",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
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"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "unaffected",
"packageName": "webkitgtk3",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
}
],
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
"matchCriteriaId": "6CB91417-90A8-4A9B-A1D0-1D94B80EF837",
"versionEndExcluding": "26.5",
"versionStartIncluding": "26.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5, macOS Tahoe 26.5. Processing maliciously crafted web content may lead to an unexpected Safari crash."
},
{
"lang": "es",
"value": "Un problema de uso después de liberación se abordó con una gestión de memoria mejorada. Este problema está solucionado en macOS Tahoe 26.5. El procesamiento de contenido web creado con fines maliciosos puede provocar un cierre inesperado de Safari."
}
],
"id": "CVE-2026-28946",
"lastModified": "2026-10-26T18:10:00.173",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"impactScore": 3.6,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
},
{
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"baseScore": 8.8,
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"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
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"options": [
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},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-12T17:46:36.873502Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-05-11T21:18:55.740",
"references": [
{
"source": "product-security@apple.com",
"tags": [
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],
"url": "https://support.apple.com/en-us/127115"
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{
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},
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:25927"
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{
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{
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},
{
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"url": "https://access.redhat.com/errata/RHSA-2026:28146"
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:28147"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2026:28148"
},
{
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"url": "https://access.redhat.com/security/cve/CVE-2026-28946"
},
{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2471790"
},
{
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"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28946.json"
}
],
"sourceIdentifier": "product-security@apple.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
},
{
"description": [
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"value": "CWE-416"
}
],
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"type": "Secondary"
}
]
},
"severity": "MEDIUM",
"source": "nvd",
"title": "A use-after-free issue was addressed with improved memory management"
}