Critical
mediawiki — security advisory
Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
- Products
- mediawiki
- Affected versions
- 1:1.27.3-1, 1:1.27.4-1, 1:1.27.4-2, 1:1.27.4-3, 1:1.31.2-1ubuntu1, 1:1.31.5-1, 1:1.31.5-1ubuntu1, 1:1.31.5-2, 1:1.31.5-3, 1:1.31.5-3ubuntu1, 1:1.31.6-1, 1:1.31.7-1, 1:1.31.7-1ubuntu0.1~esm1, 1:1.35.3-1, 1:1.35.4-1, 1:1.35.5-1, 1:1.35.5-1ubuntu1, 1:1.35.5-1ubuntu2, 1:1.35.5-1ubuntu3, 1:1.35.6-1, 1:1.35.6-1ubuntu0.1~esm1, 1:1.39.4-2, 1:1.39.5-1, 1:1.39.6-1, 1:1.39.7-1, 1:1.39.7-1ubuntu0.1~esm1, 1:1.43.1+dfsg-1, 1:1.43.1+dfsg-2, 1:1.43.3+dfsg-1, 1:1.43.5+dfsg-1, 1:1.43.6+dfsg-2, 1:1.43.8+dfsg-1, 1:1.43.8+dfsg-2, 1:1.43.9+dfsg-1, 1:1.43.9+dfsg-1ubuntu1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-58025
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:10 UTC · Revision 1
Source evidence
Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
osv:UBUNTU-CVE-2026-58025
mediawiki
Fixed versions: Not specified
mediawiki
Fixed versions: Not specified
mediawiki
Fixed versions: Not specified
mediawiki
Fixed versions: Not specified
mediawiki
Fixed versions: Not specified
mediawiki
Fixed versions: Not specified
mediawiki
Fixed versions: Not specified
Complete source record
{
"id": "1d2027685da3fa4840498045f932a3ae4b6c8885034f835a6852e8dc9ca452b3",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-58025",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-58025",
"summary": "Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.",
"evidence": "osv:UBUNTU-CVE-2026-58025",
"products": [
{
"name": {
"value": "mediawiki",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.27.3-1",
"evidence": "/affected/0/versions"
},
{
"value": "1:1.27.4-1",
"evidence": "/affected/0/versions"
},
{
"value": "1:1.27.4-2",
"evidence": "/affected/0/versions"
},
{
"value": "1:1.27.4-3",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "mediawiki",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.31.2-1ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "1:1.31.5-1",
"evidence": "/affected/1/versions"
},
{
"value": "1:1.31.5-1ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "1:1.31.5-2",
"evidence": "/affected/1/versions"
},
{
"value": "1:1.31.5-3",
"evidence": "/affected/1/versions"
},
{
"value": "1:1.31.5-3ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "1:1.31.6-1",
"evidence": "/affected/1/versions"
},
{
"value": "1:1.31.7-1",
"evidence": "/affected/1/versions"
},
{
"value": "1:1.31.7-1ubuntu0.1~esm1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "mediawiki",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.35.3-1",
"evidence": "/affected/2/versions"
},
{
"value": "1:1.35.4-1",
"evidence": "/affected/2/versions"
},
{
"value": "1:1.35.5-1",
"evidence": "/affected/2/versions"
},
{
"value": "1:1.35.5-1ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "1:1.35.5-1ubuntu2",
"evidence": "/affected/2/versions"
},
{
"value": "1:1.35.5-1ubuntu3",
"evidence": "/affected/2/versions"
},
{
"value": "1:1.35.6-1",
"evidence": "/affected/2/versions"
},
{
"value": "1:1.35.6-1ubuntu0.1~esm1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "mediawiki",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.39.4-2",
"evidence": "/affected/3/versions"
},
{
"value": "1:1.39.5-1",
"evidence": "/affected/3/versions"
},
{
"value": "1:1.39.6-1",
"evidence": "/affected/3/versions"
},
{
"value": "1:1.39.7-1",
"evidence": "/affected/3/versions"
},
{
"value": "1:1.39.7-1ubuntu0.1~esm1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "mediawiki",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.43.1+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "1:1.43.1+dfsg-2",
"evidence": "/affected/4/versions"
},
{
"value": "1:1.43.3+dfsg-1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "mediawiki",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.43.8+dfsg-2",
"evidence": "/affected/5/versions"
},
{
"value": "1:1.43.9+dfsg-1",
"evidence": "/affected/5/versions"
},
{
"value": "1:1.43.9+dfsg-1ubuntu1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "mediawiki",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.43.3+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "1:1.43.5+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "1:1.43.6+dfsg-2",
"evidence": "/affected/6/versions"
},
{
"value": "1:1.43.8+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "1:1.43.8+dfsg-2",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "critical",
"structured": {
"id": "UBUNTU-CVE-2026-58025",
"aliases": [
"UBUNTU-CVE-2026-58025"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "mediawiki",
"purl": "pkg:deb/ubuntu/mediawiki?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"1:1.27.3-1",
"1:1.27.4-1",
"1:1.27.4-2",
"1:1.27.4-3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58025.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "mediawiki",
"binary_version": "1:1.27.4-3"
},
{
"binary_name": "mediawiki-classes",
"binary_version": "1:1.27.4-3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "mediawiki",
"purl": "pkg:deb/ubuntu/mediawiki?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"1:1.31.2-1ubuntu1",
"1:1.31.5-1",
"1:1.31.5-1ubuntu1",
"1:1.31.5-2",
"1:1.31.5-3",
"1:1.31.5-3ubuntu1",
"1:1.31.6-1",
"1:1.31.7-1",
"1:1.31.7-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58025.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "mediawiki",
"binary_version": "1:1.31.7-1ubuntu0.1~esm1"
},
{
"binary_name": "mediawiki-classes",
"binary_version": "1:1.31.7-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "mediawiki",
"purl": "pkg:deb/ubuntu/mediawiki?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"1:1.35.3-1",
"1:1.35.4-1",
"1:1.35.5-1",
"1:1.35.5-1ubuntu1",
"1:1.35.5-1ubuntu2",
"1:1.35.5-1ubuntu3",
"1:1.35.6-1",
"1:1.35.6-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58025.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "mediawiki",
"binary_version": "1:1.35.6-1ubuntu0.1~esm1"
},
{
"binary_name": "mediawiki-classes",
"binary_version": "1:1.35.6-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
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"package": {
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"purl": "pkg:deb/ubuntu/mediawiki?arch=source&distro=esm-apps%2Fnoble",
"ecosystem": "Ubuntu:Pro:24.04:LTS"
},
"versions": [
"1:1.39.4-2",
"1:1.39.5-1",
"1:1.39.6-1",
"1:1.39.7-1",
"1:1.39.7-1ubuntu0.1~esm1"
],
"database_specific": {
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},
"ecosystem_specific": {
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{
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{
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},
{
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"package": {
"name": "mediawiki",
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"ecosystem": "Ubuntu:25.10"
},
"versions": [
"1:1.43.1+dfsg-1",
"1:1.43.1+dfsg-2",
"1:1.43.3+dfsg-1"
],
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},
"ecosystem_specific": {
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{
"binary_name": "mediawiki",
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},
{
"binary_name": "mediawiki-classes",
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}
]
}
},
{
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{
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{
"introduced": "0"
}
]
}
],
"package": {
"name": "mediawiki",
"purl": "pkg:deb/ubuntu/mediawiki?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"1:1.43.8+dfsg-2",
"1:1.43.9+dfsg-1",
"1:1.43.9+dfsg-1ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58025.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "mediawiki",
"binary_version": "1:1.43.9+dfsg-1ubuntu1"
},
{
"binary_name": "mediawiki-classes",
"binary_version": "1:1.43.9+dfsg-1ubuntu1"
}
]
}
},
{
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{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "mediawiki",
"purl": "pkg:deb/ubuntu/mediawiki?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"1:1.43.3+dfsg-1",
"1:1.43.5+dfsg-1",
"1:1.43.6+dfsg-2",
"1:1.43.8+dfsg-1",
"1:1.43.8+dfsg-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58025.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "mediawiki",
"binary_version": "1:1.43.8+dfsg-2"
},
{
"binary_name": "mediawiki-classes",
"binary_version": "1:1.43.8+dfsg-2"
}
]
}
}
],
"modified": "2026-10-17T13:00:28.316804131Z",
"provider": "osv",
"upstream": [
"CVE-2026-58025"
],
"references": [
"https://ubuntu.com/security/CVE-2026-58025",
"https://www.cve.org/CVERecord?id=CVE-2026-58025",
"https://phabricator.wikimedia.org/T422244",
"https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1306343",
"https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1306363"
]
},
"related_cves": [
{
"value": "CVE-2026-58025",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 360580,
"published_at": "2026-07-01T16:16:00+00:00"
}