High
nagios4 — security advisory
Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.
- Products
- nagios4
- Affected versions
- 4.3.4-3, 4.3.4-3ubuntu0.1, 4.4.6-4, 4.4.6-4.1ubuntu1, 4.4.6-4.1ubuntu2, 4.4.6-4ubuntu0.22.04.1, 4.4.6-4ubuntu0.24.04.1
- Fixed versions
- Not specified
- CVEs
- CVE-2020-35269
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:29 UTC · Revision 1
Source evidence
Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.
osv:UBUNTU-CVE-2020-35269
nagios4
Fixed versions: Not specified
nagios4
Fixed versions: Not specified
nagios4
Fixed versions: Not specified
nagios4
Fixed versions: Not specified
nagios4
Fixed versions: Not specified
nagios4
Fixed versions: Not specified
Complete source record
{
"id": "fde712d972d21b3f29afad019afcc73310cff1bc83f7f2d5cda201acc5136636",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-35269",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2020-35269",
"summary": "Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.",
"evidence": "osv:UBUNTU-CVE-2020-35269",
"products": [
{
"name": {
"value": "nagios4",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.3.4-3",
"evidence": "/affected/0/versions"
},
{
"value": "4.3.4-3ubuntu0.1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.4.6-4",
"evidence": "/affected/1/versions"
},
{
"value": "4.4.6-4ubuntu0.22.04.1",
"evidence": "/affected/1/versions"
}
]
},
{
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},
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"affected_versions": [
{
"value": "4.4.6-4",
"evidence": "/affected/2/versions"
},
{
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"evidence": "/affected/2/versions"
}
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{
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{
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"evidence": "/affected/3/versions"
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]
},
{
"name": {
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"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
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"evidence": "/affected/4/versions"
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},
{
"name": {
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},
"prerequisites": [],
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"affected_versions": [
{
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},
{
"value": "4.4.6-4.1ubuntu2",
"evidence": "/affected/5/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2020-35269",
"aliases": [
"UBUNTU-CVE-2020-35269"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
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"events": [
{
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],
"package": {
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"purl": "pkg:deb/ubuntu/nagios4?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"4.3.4-3",
"4.3.4-3ubuntu0.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35269.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "nagios4",
"binary_version": "4.3.4-3ubuntu0.1"
},
{
"binary_name": "nagios4-cgi",
"binary_version": "4.3.4-3ubuntu0.1"
},
{
"binary_name": "nagios4-common",
"binary_version": "4.3.4-3ubuntu0.1"
},
{
"binary_name": "nagios4-core",
"binary_version": "4.3.4-3ubuntu0.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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}
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],
"package": {
"name": "nagios4",
"purl": "pkg:deb/ubuntu/nagios4?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"4.4.6-4",
"4.4.6-4ubuntu0.22.04.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35269.json"
},
"ecosystem_specific": {
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{
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"binary_version": "4.4.6-4ubuntu0.22.04.1"
},
{
"binary_name": "nagios4-cgi",
"binary_version": "4.4.6-4ubuntu0.22.04.1"
},
{
"binary_name": "nagios4-common",
"binary_version": "4.4.6-4ubuntu0.22.04.1"
},
{
"binary_name": "nagios4-core",
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}
]
}
},
{
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"events": [
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]
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],
"package": {
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"purl": "pkg:deb/ubuntu/nagios4?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"4.4.6-4",
"4.4.6-4ubuntu0.24.04.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35269.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "nagios4",
"binary_version": "4.4.6-4ubuntu0.24.04.1"
},
{
"binary_name": "nagios4-cgi",
"binary_version": "4.4.6-4ubuntu0.24.04.1"
},
{
"binary_name": "nagios4-common",
"binary_version": "4.4.6-4ubuntu0.24.04.1"
},
{
"binary_name": "nagios4-core",
"binary_version": "4.4.6-4ubuntu0.24.04.1"
}
]
}
},
{
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"package": {
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"purl": "pkg:deb/ubuntu/nagios4?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"4.4.6-4.1ubuntu1"
],
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},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "nagios4",
"binary_version": "4.4.6-4.1ubuntu1"
},
{
"binary_name": "nagios4-cgi",
"binary_version": "4.4.6-4.1ubuntu1"
},
{
"binary_name": "nagios4-common",
"binary_version": "4.4.6-4.1ubuntu1"
},
{
"binary_name": "nagios4-core",
"binary_version": "4.4.6-4.1ubuntu1"
}
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}
},
{
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"package": {
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"purl": "pkg:deb/ubuntu/nagios4?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"4.4.6-4.1ubuntu2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35269.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "nagios4",
"binary_version": "4.4.6-4.1ubuntu2"
},
{
"binary_name": "nagios4-cgi",
"binary_version": "4.4.6-4.1ubuntu2"
},
{
"binary_name": "nagios4-common",
"binary_version": "4.4.6-4.1ubuntu2"
},
{
"binary_name": "nagios4-core",
"binary_version": "4.4.6-4.1ubuntu2"
}
]
}
},
{
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{
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],
"package": {
"name": "nagios4",
"purl": "pkg:deb/ubuntu/nagios4?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"4.4.6-4.1ubuntu1",
"4.4.6-4.1ubuntu2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35269.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "nagios4",
"binary_version": "4.4.6-4.1ubuntu2"
},
{
"binary_name": "nagios4-cgi",
"binary_version": "4.4.6-4.1ubuntu2"
},
{
"binary_name": "nagios4-common",
"binary_version": "4.4.6-4.1ubuntu2"
},
{
"binary_name": "nagios4-core",
"binary_version": "4.4.6-4.1ubuntu2"
}
]
}
}
],
"modified": "2026-10-17T12:56:55.716991635Z",
"provider": "osv",
"upstream": [
"CVE-2020-35269"
],
"references": [
"https://ubuntu.com/security/CVE-2020-35269",
"https://gist.github.com/MoSalah20/d1d40b43eafba0bd22ee4cddecad3cbc",
"https://github.com/NagiosEnterprises/nagioscore/issues/809",
"https://www.cve.org/CVERecord?id=CVE-2020-35269"
]
},
"related_cves": [
{
"value": "CVE-2020-35269",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 356546,
"published_at": "2020-12-23T19:15:00+00:00"
}