LowFix available
nano — security advisory
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.
- Products
- nano
- Affected versions
- 7.2-1, 7.2-1+deb12u1, 7.2-2, 8.0-1, 8.1-1, 8.2-1, 8.3-1, 8.4-1, 8.5-1, 8.6-1, 8.7-1, 8.7.1-1, 9.0-1, 9.1-1, 9.2-1, 9.3-1
- Fixed versions
- 8.4-1+deb13u1, 9.0-1
- CVEs
- CVE-2026-6842
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:53 UTC · Revision 2
Source evidence
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.
osv:DEBIAN-CVE-2026-6842
nano
Fixed versions: Not specified
nano
Fixed versions: 8.4-1+deb13u1
nano
Fixed versions: 9.0-1
Complete source record
{
"id": "66062e11c9b660805f175d017707b48b04c6387968597e63b23a57df09f2503d",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-6842",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-6842",
"summary": "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.",
"evidence": "osv:DEBIAN-CVE-2026-6842",
"products": [
{
"name": {
"value": "nano",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "7.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "7.2-1+deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "7.2-2",
"evidence": "/affected/0/versions"
},
{
"value": "8.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "8.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "8.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "8.3-1",
"evidence": "/affected/0/versions"
},
{
"value": "8.4-1",
"evidence": "/affected/0/versions"
},
{
"value": "8.5-1",
"evidence": "/affected/0/versions"
},
{
"value": "8.6-1",
"evidence": "/affected/0/versions"
},
{
"value": "8.7-1",
"evidence": "/affected/0/versions"
},
{
"value": "8.7.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "9.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "9.1-1",
"evidence": "/affected/0/versions"
},
{
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},
{
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}
]
},
{
"name": {
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},
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"evidence": "/affected/1/versions"
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},
{
"name": {
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},
"prerequisites": [],
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}
],
"affected_versions": [
{
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"evidence": "/affected/2/versions"
},
{
"value": "8.5-1",
"evidence": "/affected/2/versions"
},
{
"value": "8.6-1",
"evidence": "/affected/2/versions"
},
{
"value": "8.7-1",
"evidence": "/affected/2/versions"
},
{
"value": "8.7.1-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "low",
"structured": {
"id": "DEBIAN-CVE-2026-6842",
"aliases": [
"DEBIAN-CVE-2026-6842"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "nano",
"purl": "pkg:deb/debian/nano?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"7.2-1",
"7.2-1+deb12u1",
"7.2-2",
"8.0-1",
"8.1-1",
"8.2-1",
"8.3-1",
"8.4-1",
"8.5-1",
"8.6-1",
"8.7-1",
"8.7.1-1",
"9.0-1",
"9.1-1",
"9.2-1",
"9.3-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6842.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8.4-1+deb13u1"
}
]
}
],
"package": {
"name": "nano",
"purl": "pkg:deb/debian/nano?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"8.4-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6842.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.0-1"
}
]
}
],
"package": {
"name": "nano",
"purl": "pkg:deb/debian/nano?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"8.4-1",
"8.5-1",
"8.6-1",
"8.7-1",
"8.7.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6842.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-27T10:01:48.089908321Z",
"provider": "osv",
"upstream": [
"CVE-2026-6842"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-6842"
]
},
"related_cves": [
{
"value": "CVE-2026-6842",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 461419,
"published_at": "2026-04-22T08:16:13.17+00:00"
}