CVE-2026-83596
Full vulnerability record from the local CVENow database.
Description
A flaw was found in WebKitGTK. Processing malicious web content can cause memory corruption due to improper memory handling.
Severity
HIGH
CVSS score
8.8
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-08-31 21:17:55.190000
Last modified
2026-10-29 20:17:36.017000
View original CVE JSON
{
"id": "CVE-2026-83596",
"sourceIdentifier": "[email protected]",
"published": "2026-08-31T21:17:55.190",
"lastModified": "2026-10-29T20:17:36.017",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in WebKitGTK. Processing malicious web content can cause memory corruption due to improper memory handling."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "WebKit",
"product": "WebKit",
"defaultStatus": "unaffected",
"collectionURL": "https://webkit.org/",
"packageName": "webkit",
"versions": [
{
"version": "1.10.0",
"lessThan": "*",
"versionType": "semver",
"status": "affected"
}
]
},
{
"vendor": "WebKitGTK",
"product": "WebKitGTK",
"defaultStatus": "unaffected",
"collectionURL": "https://webkitgtk.org/",
"packageName": "webkitgtk",
"versions": [
{
"version": "1.10.0",
"lessThan": "*",
"versionType": "semver",
"status": "affected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "webkitgtk4",
"cpes": [
"cpe:/o:redhat:rhel_els:7"
],
"versions": [
{
"version": "0:2.54.0-1.el7_9",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "webkit2gtk3",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream"
],
"versions": [
{
"version": "0:2.54.0-1.el8_10",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "webkit2gtk3",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.6::appstream",
"cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
],
"versions": [
{
"version": "0:2.54.0-1.el8_6",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "webkit2gtk3",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.6::appstream",
"cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
],
"versions": [
{
"version": "0:2.54.0-1.el8_6",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "webkit2gtk3",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream"
],
"versions": [
{
"version": "0:2.54.0-1.el9_8",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "webkit2gtk3",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2::appstream"
],
"versions": [
{
"version": "0:2.54.0-1.el9_2",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "webkit2gtk3",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.4::appstream"
],
"versions": [
{
"version": "0:2.54.0-1.el9_4",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "webkit2gtk3",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6::appstream"
],
"versions": [
{
"version": "0:2.54.0-1.el9_6",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 6",
"defaultStatus": "unknown",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "webkitgtk",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 7",
"defaultStatus": "unaffected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "webkitgtk3",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-09-02T03:55:22.546908Z",
"id": "CVE-2026-83596",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-120"
}
]
}
],
"references": [
{
"url": "https://access.redhat.com/errata/RHSA-2026:69098",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:74084",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:89821",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:89822",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:91631",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:92216",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:92339",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-83596",
"source": "[email protected]"
},
{
"url": "https://bugs.webkit.org/show_bug.cgi?id=322969",
"source": "[email protected]"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2526490",
"source": "[email protected]"
}
]
}