Incorrect Permission Assignment for Critical Resource Affecting nano package, versions [2.9.1,9.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published27 Apr 2026
- disclosed13 Apr 2026
- creditMichał Majchrowicz, Marcin Wyczechowski
Introduced: 13 Apr 2026
CVE-2026-6842 (opens in a new tab)How to fix?
Upgrade nano to version 9.1 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Permission Assignment for Critical Resource insecure permissions are set on the ~/.local directory in permissive umask environments. An attacker can inject a malicious .desktop launcher by exploiting world-writable directory permissions.
Workaround
This vulnerability can be mitigated by configuring the system's umask to a secure value, such as 0022 or 0077, to prevent the creation of world-writable directories.