MediumFix available
webkit2gtk, wpewebkit — security advisory
A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may result in the disclosure of process memory.
- Products
- webkit2gtk, wpewebkit
- Affected versions
- Not specified
- Fixed versions
- 2.30.0-1, 2.30.1-1
- CVEs
- CVE-2021-1820
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:32 UTC · Revision 1
Source evidence
A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may result in the disclosure of process memory.
osv:DEBIAN-CVE-2021-1820
webkit2gtk
Fixed versions: 2.30.1-1
webkit2gtk
Fixed versions: 2.30.1-1
webkit2gtk
Fixed versions: 2.30.1-1
wpewebkit
Fixed versions: 2.30.0-1
wpewebkit
Fixed versions: 2.30.0-1
wpewebkit
Fixed versions: 2.30.0-1
Complete source record
{
"id": "3aba377d1e1a025577f77271f1f0958cd3ea215c91d100af945ab53c118d29a5",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-1820",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2021-1820",
"summary": "A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may result in the disclosure of process memory.",
"evidence": "osv:DEBIAN-CVE-2021-1820",
"products": [
{
"name": {
"value": "webkit2gtk",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.30.1-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.30.1-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.30.0-1",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.30.0-1",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2021-1820",
"aliases": [
"DEBIAN-CVE-2021-1820"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
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{
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}
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],
"package": {
"name": "webkit2gtk",
"purl": "pkg:deb/debian/webkit2gtk?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-1820.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
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"package": {
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"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-1820.json"
},
"ecosystem_specific": {
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},
{
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],
"package": {
"name": "webkit2gtk",
"purl": "pkg:deb/debian/webkit2gtk?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-1820.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
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],
"package": {
"name": "wpewebkit",
"purl": "pkg:deb/debian/wpewebkit?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-1820.json"
},
"ecosystem_specific": {
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}
},
{
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{
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],
"package": {
"name": "wpewebkit",
"purl": "pkg:deb/debian/wpewebkit?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-1820.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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{
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{
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],
"package": {
"name": "wpewebkit",
"purl": "pkg:deb/debian/wpewebkit?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-1820.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:03:24.381082272Z",
"provider": "osv",
"upstream": [
"CVE-2021-1820"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2021-1820"
]
},
"related_cves": [
{
"value": "CVE-2021-1820",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 421404,
"published_at": "2021-09-08T15:15:09.993+00:00"
}