High
Webkitgtk: processing maliciously crafted web content may lead to an unexpected process crash
Type: advisorySources: OSV
A flaw was found in WebKitGTK. Processing malicious web content can cause an unexpected process crash due to improper memory handling.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-66287
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 6 Nov 2026, 04:45 UTC · Revision 1
Source evidence
Webkitgtk: processing maliciously crafted web content may lead to an unexpected process crash
core-osv · Original sourcePublished 4 Dec 2025, 16:48 UTC
A flaw was found in WebKitGTK. Processing malicious web content can cause an unexpected process crash due to improper memory handling.
osv:CVE-2025-66287
Complete source record
{
"id": "e011a1db0b95170e8b6c575d0a578074cd2a7c39fd545c00e3375d7f2eeb8a1c",
"url": "https://osv.dev/vulnerability/CVE-2025-66287",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Webkitgtk: processing maliciously crafted web content may lead to an unexpected process crash",
"summary": "A flaw was found in WebKitGTK. Processing malicious web content can cause an unexpected process crash due to improper memory handling.",
"evidence": "osv:CVE-2025-66287",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2025-66287",
"aliases": [
"CVE-2025-66287"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/webkit/webkit",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "d51fd9af8d3741fe606a83dc1fe7f3c3efb77d25"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "2.50.3"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
}
],
"versions": [
"webkitgtk-2.50.2",
"wpewebkit-2.50.2",
"wpewebkit-2.50.1",
"webkitgtk-2.50.1",
"wpewebkit-2.50.0",
"webkitgtk-2.50.0",
"wpewebkit-2.49.90",
"webkitgtk-2.49.90",
"wpewebkit-2.49.4",
"webkitgtk-2.49.4",
"wpewebkit-2.49.3",
"webkitgtk-2.49.3",
"wpewebkit-2.49.2",
"webkitgtk-2.49.2",
"WebKit-7622.1.10",
"wpewebkit-2.49.1",
"webkitgtk-2.49.1",
"WebKit-7622.1.7",
"wpewebkit-2.47.4",
"webkitgtk-2.47.4",
"wpewebkit-2.47.3",
"webkitgtk-2.47.3",
"wpewebkit-2.47.2",
"webkitgtk-2.47.2",
"wpewebkit-2.47.1",
"webkitgtk-2.47.1",
"WebKit-7621.1.2",
"webkitgtk-2.45.6",
"webkitgtk-2.45.5",
"webkitgtk-2.45.4",
"wpewebkit-2.45.3",
"webkitgtk-2.45.3",
"wpewebkit-2.45.2",
"webkitgtk-2.45.2",
"wpewebkit-2.45.1",
"webkitgtk-2.45.1",
"webkitgtk-2.43.4",
"webkitgtk-2.43.3",
"webkitgtk-2.43.2",
"wpewebkit-2.43.1",
"webkitgtk-2.43.1",
"WebKit-7617.1.5",
"webkitgtk-2.41.6",
"WebKit-7616.1.20",
"webkitgtk-2.41.5",
"webkitgtk-2.41.4",
"webkitgtk-2.41.3",
"wpewebkit-2.41.2",
"Justin-needs-to-test-123",
"webkitgtk-2.41.2",
"webkitgtk-2.41.1",
"webkitgtk-2.39.6",
"webkitgtk-2.39.7",
"wpewebkit-2.39.5",
"webkitgtk-2.39.5",
"webkitgtk-2.39.4",
"webkitgtk-2.39.3",
"webkitgtk-2.39.2",
"webkitgtk-2.39.1",
"wpewebkit-2.37.1",
"webkitgtk-2.37.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66287.json"
}
}
],
"modified": "2026-10-28T02:30:46.620120879Z",
"provider": "osv",
"references": [
"https://access.redhat.com/downloads/content/package-browser/",
"https://webkitgtk.org/security/WSA-2025-0009.html",
"https://access.redhat.com/errata/RHSA-2025:22789",
"https://access.redhat.com/errata/RHSA-2025:22790",
"https://access.redhat.com/errata/RHSA-2025:23110",
"https://access.redhat.com/errata/RHSA-2025:23433",
"https://access.redhat.com/errata/RHSA-2025:23434",
"https://access.redhat.com/errata/RHSA-2025:23451",
"https://access.redhat.com/errata/RHSA-2025:23452",
"https://access.redhat.com/errata/RHSA-2025:23583",
"https://access.redhat.com/errata/RHSA-2025:23591",
"https://access.redhat.com/errata/RHSA-2025:23742",
"https://access.redhat.com/errata/RHSA-2025:23743",
"https://access.redhat.com/security/cve/CVE-2025-66287",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66287.json",
"https://nvd.nist.gov/vuln/detail/CVE-2025-66287",
"https://bugzilla.redhat.com/show_bug.cgi?id=2418857",
"https://github.com/WebKit/WebKit"
],
"provider_metadata": {
"cwe_ids": [
"CWE-120"
],
"cna_assigner": "redhat",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"fixed": "0:2.50.3-2.el7_9"
},
{
"fixed": "0:2.50.3-1.el8_10"
},
{
"fixed": "0:2.50.3-2.el8_2"
},
{
"fixed": "0:2.50.3-2.el8_4"
},
{
"fixed": "0:2.50.3-2.el8_4"
},
{
"fixed": "0:2.50.3-2.el8_6"
},
{
"fixed": "0:2.50.3-2.el8_6"
},
{
"fixed": "0:2.50.3-2.el8_6"
},
{
"fixed": "0:2.50.3-2.el8_8"
},
{
"fixed": "0:2.50.3-2.el8_8"
},
{
"fixed": "0:2.50.3-1.el9_7"
},
{
"fixed": "0:2.50.3-1.el9_0"
},
{
"fixed": "0:2.50.3-1.el9_2"
},
{
"fixed": "0:2.50.3-1.el9_4"
},
{
"fixed": "0:2.50.3-1.el9_6"
}
],
"source": "AFFECTED_FIELD",
"strategy": "InverseAffectedRanges"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66287.json"
}
},
"related_cves": [
{
"value": "CVE-2025-66287",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 514636,
"published_at": "2025-12-04T16:48:31.485+00:00"
}