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Back to active CVEs
Low · CVSS 2.5CVE-2026-6842

Nano: nano: local attacker can inject malicious .desktop launcher due to insecure directory permissionsCVE-2026-6842

Answer in brief

CVE-2026-6842 records a Low severity (CVSS 2.5) vulnerability in Nano: nano: local attacker can inject malicious .desktop launcher due to insecure directory permissions. The current sources do not mark it as known exploited. The current feed maps nano (generic), Red Hat/nano (generic), Red Hat/openshift/ose-rhel-coreos-8 (generic), Red Hat/openshift/ose-rhel-coreos-9 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Apr 22, 2026Updated Sep 1, 2026Source checked Oct 11, 2026First seen by HOL Aug 26, 2026Material review Sep 1, 2026
Upstream Advisory

Key facts

Risk
Low · CVSS 2.5
Exploitation
Not marked as known exploited
Affected software
4 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 2.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps nano (generic), Red Hat/nano (generic), Red Hat/openshift/ose-rhel-coreos-8 (generic), Red Hat/openshift/ose-rhel-coreos-9 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
nanogeneric>=2.9.1 <9.09.0
Red Hat/nanogeneric*Not reported
Red Hat/openshift/ose-rhel-coreos-8generic*Not reported
Red Hat/openshift/ose-rhel-coreos-9generic*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for nano, Red Hat/nano, Red Hat/openshift/ose-rhel-coreos-8.
  2. 2Review the reported fix. Source-reported workaround: Ensure that the system's umask is configured to a secure value, such as `0022` or `0077`, to prevent the creation of world-writable directories. This can be set system-wide in `/etc/profile` or `/etc/bashrc`, or for individual users in their `~/.bashrc` or `~/.profile`. A secure umask will ensure that newly created directories, including `~/.local` by `nano`, have appropriate permissions.

Evidence timeline and material changes

  1. Published upstream

    Apr 22, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 1, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 26, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

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Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-732
Source
CVE List V5
Source checked
Oct 11, 2026
References
2 linked sources
Open source record