High
network-manager-vpnc — security advisory
A flaw was found in NetworkManager-vpnc, a VPN plugin for NetworkManager. A local unprivileged user can exploit this vulnerability by injecting a newline character into the CA-File path. This manipulation allows the user to execute arbitrary commands as the root user, leading to local privilege escalation.
- Products
- network-manager-vpnc
- Affected versions
- 0.9.10.0-1ubuntu1, 1.0.8-1ubuntu1, 1.1.93-1, 1.1.93-1ubuntu0.1, 1.2.4-4, 1.2.4-6, 1.2.4-6ubuntu0.1, 1.2.6-2, 1.2.6-3, 1.2.6-4, 1.2.8-2, 1.2.8-5, 1.2.8-7, 1.2.8-7build1, 1.2.8-7build2, 1.4.0-3, 1.4.0-3build1, 1.4.0-4
- Fixed versions
- Not specified
- CVEs
- CVE-2026-91841
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:31 UTC · Revision 1
Source evidence
A flaw was found in NetworkManager-vpnc, a VPN plugin for NetworkManager. A local unprivileged user can exploit this vulnerability by injecting a newline character into the CA-File path. This manipulation allows the user to execute arbitrary commands as the root user, leading to local privilege escalation.
osv:UBUNTU-CVE-2026-91841
network-manager-vpnc
Fixed versions: Not specified
network-manager-vpnc
Fixed versions: Not specified
network-manager-vpnc
Fixed versions: Not specified
network-manager-vpnc
Fixed versions: Not specified
network-manager-vpnc
Fixed versions: Not specified
network-manager-vpnc
Fixed versions: Not specified
network-manager-vpnc
Fixed versions: Not specified
Complete source record
{
"id": "6fe55934d067a28867635442af02d7b1ac3881efda519e209dcea67746983ab3",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-91841",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-91841",
"summary": "A flaw was found in NetworkManager-vpnc, a VPN plugin for NetworkManager. A local unprivileged user can exploit this vulnerability by injecting a newline character into the CA-File path. This manipulation allows the user to execute arbitrary commands as the root user, leading to local privilege escalation.",
"evidence": "osv:UBUNTU-CVE-2026-91841",
"products": [
{
"name": {
"value": "network-manager-vpnc",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.9.10.0-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "1.0.8-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "1.1.93-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.1.93-1ubuntu0.1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
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"affected_versions": [
{
"value": "1.2.4-4",
"evidence": "/affected/1/versions"
},
{
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"evidence": "/affected/1/versions"
},
{
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"evidence": "/affected/1/versions"
}
]
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
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"affected_versions": [
{
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"evidence": "/affected/2/versions"
}
]
},
{
"name": {
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"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.2.6-3",
"evidence": "/affected/3/versions"
},
{
"value": "1.2.6-4",
"evidence": "/affected/3/versions"
},
{
"value": "1.2.8-2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
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"evidence": "/affected/4/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "1.2.8-5",
"evidence": "/affected/4/versions"
},
{
"value": "1.2.8-7",
"evidence": "/affected/4/versions"
},
{
"value": "1.2.8-7build1",
"evidence": "/affected/4/versions"
},
{
"value": "1.2.8-7build2",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "network-manager-vpnc",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.4.0-3build1",
"evidence": "/affected/5/versions"
},
{
"value": "1.4.0-4",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "network-manager-vpnc",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.4.0-3",
"evidence": "/affected/6/versions"
},
{
"value": "1.4.0-3build1",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-91841",
"aliases": [
"UBUNTU-CVE-2026-91841"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
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"purl": "pkg:deb/ubuntu/network-manager-vpnc?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"0.9.10.0-1ubuntu1",
"1.0.8-1ubuntu1",
"1.1.93-1",
"1.1.93-1ubuntu0.1"
],
"database_specific": {
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},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "network-manager-vpnc",
"binary_version": "1.1.93-1ubuntu0.1"
},
{
"binary_name": "network-manager-vpnc-gnome",
"binary_version": "1.1.93-1ubuntu0.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
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"purl": "pkg:deb/ubuntu/network-manager-vpnc?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"1.2.4-4",
"1.2.4-6",
"1.2.4-6ubuntu0.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91841.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "network-manager-vpnc",
"binary_version": "1.2.4-6ubuntu0.1"
},
{
"binary_name": "network-manager-vpnc-gnome",
"binary_version": "1.2.4-6ubuntu0.1"
}
]
}
},
{
"ranges": [
{
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"events": [
{
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}
]
}
],
"package": {
"name": "network-manager-vpnc",
"purl": "pkg:deb/ubuntu/network-manager-vpnc?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"1.2.6-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91841.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "network-manager-vpnc",
"binary_version": "1.2.6-2"
},
{
"binary_name": "network-manager-vpnc-gnome",
"binary_version": "1.2.6-2"
}
]
}
},
{
"ranges": [
{
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],
"package": {
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"purl": "pkg:deb/ubuntu/network-manager-vpnc?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.2.6-3",
"1.2.6-4",
"1.2.8-2"
],
"database_specific": {
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},
"ecosystem_specific": {
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"binary_version": "1.2.8-2"
},
{
"binary_name": "network-manager-vpnc-gnome",
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}
]
}
},
{
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"purl": "pkg:deb/ubuntu/network-manager-vpnc?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"1.2.8-5",
"1.2.8-7",
"1.2.8-7build1",
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],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91841.json"
},
"ecosystem_specific": {
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{
"binary_name": "network-manager-vpnc",
"binary_version": "1.2.8-7build2"
},
{
"binary_name": "network-manager-vpnc-gnome",
"binary_version": "1.2.8-7build2"
}
]
}
},
{
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],
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"purl": "pkg:deb/ubuntu/network-manager-vpnc?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"1.4.0-3build1",
"1.4.0-4"
],
"database_specific": {
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},
"ecosystem_specific": {
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},
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"binary_name": "network-manager-vpnc-gnome",
"binary_version": "1.4.0-4"
}
]
}
},
{
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"package": {
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"purl": "pkg:deb/ubuntu/network-manager-vpnc?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
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"1.4.0-3build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91841.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "network-manager-vpnc",
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},
{
"binary_name": "network-manager-vpnc-gnome",
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}
]
}
}
],
"modified": "2026-10-17T13:01:17.162685702Z",
"provider": "osv",
"upstream": [
"CVE-2026-91841"
],
"references": [
"https://ubuntu.com/security/CVE-2026-91841",
"https://www.cve.org/CVERecord?id=CVE-2026-91841",
"https://gitlab.gnome.org/Archive/NetworkManager-vpnc/-/work_items/20",
"https://blogs.gnome.org/mcatanzaro/2026/09/15/privilege-escalation-vulnerabilities-in-networkmanager-plugins/"
]
},
"related_cves": [
{
"value": "CVE-2026-91841",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 361502,
"published_at": "2026-09-25T18:17:00+00:00"
}