ubuntu-cve-2026-6842
Vulnerability from osv_ubuntu
Published
2026-04-22 08:16
Modified
2026-06-05 01:03
Summary
Details
A flaw was found in nano. In environments with permissive umask settings, a local attacker can exploit incorrect directory permissions (0777 instead of 0700) for the ~/.local directory. This allows the attacker to inject a malicious .desktop launcher, which could lead to unintended actions or information disclosure if the launcher is subsequently processed.
Severity
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "nano",
"binary_version": "2.9.3-2ubuntu0.1~esm2"
},
{
"binary_name": "nano-tiny",
"binary_version": "2.9.3-2ubuntu0.1~esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "nano",
"purl": "pkg:deb/ubuntu/nano@2.9.3-2ubuntu0.1~esm2?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.3-2ubuntu0.1~esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.8.6-3",
"2.8.7-1",
"2.9.0-1",
"2.9.1-1",
"2.9.2-1",
"2.9.3-1",
"2.9.3-2",
"2.9.3-2ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "nano",
"binary_version": "4.8-1ubuntu1.1+esm1"
},
{
"binary_name": "nano-tiny",
"binary_version": "4.8-1ubuntu1.1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "nano",
"purl": "pkg:deb/ubuntu/nano@4.8-1ubuntu1.1+esm1?arch=source\u0026distro=esm-infra/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.8-1ubuntu1.1+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.3-1",
"4.5-1",
"4.7-1",
"4.7-2",
"4.8-1",
"4.8-1ubuntu1",
"4.8-1ubuntu1.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "nano",
"binary_version": "6.2-1ubuntu0.2"
},
{
"binary_name": "nano-tiny",
"binary_version": "6.2-1ubuntu0.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "nano",
"purl": "pkg:deb/ubuntu/nano@6.2-1ubuntu0.2?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.2-1ubuntu0.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.6.1-1build1",
"5.9-1",
"6.0-1",
"6.1-1",
"6.2-1",
"6.2-1ubuntu0.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "nano",
"binary_version": "7.2-2ubuntu0.2"
},
{
"binary_name": "nano-tiny",
"binary_version": "7.2-2ubuntu0.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "nano",
"purl": "pkg:deb/ubuntu/nano@7.2-2ubuntu0.2?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.2-2ubuntu0.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.2-1",
"7.2-2",
"7.2-2build1",
"7.2-2ubuntu0.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "nano",
"binary_version": "8.4-1ubuntu0.1"
},
{
"binary_name": "nano-tiny",
"binary_version": "8.4-1ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "nano",
"purl": "pkg:deb/ubuntu/nano@8.4-1ubuntu0.1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "8.4-1ubuntu0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"8.3-1",
"8.4-1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "nano",
"binary_version": "8.7.1-1ubuntu0.1"
},
{
"binary_name": "nano-tiny",
"binary_version": "8.7.1-1ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "nano",
"purl": "pkg:deb/ubuntu/nano@8.7.1-1ubuntu0.1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "8.7.1-1ubuntu0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"8.4-1",
"8.6-1",
"8.7-1",
"8.7.1-1"
]
}
],
"aliases": [],
"details": "A flaw was found in nano. In environments with permissive umask settings, a local attacker can exploit incorrect directory permissions (0777 instead of 0700) for the `~/.local` directory. This allows the attacker to inject a malicious `.desktop` launcher, which could lead to unintended actions or information disclosure if the launcher is subsequently processed.",
"id": "UBUNTU-CVE-2026-6842",
"modified": "2026-06-05T01:03:25Z",
"published": "2026-04-22T08:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-6842"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6842"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460018"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2455314"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8386-1"
}
],
"related": [
"USN-8386-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-6842"
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…