# CVE-2026-6843

> Vulnerability · severity: **MEDIUM** (CVSS 5.5).

## Description

A flaw was found in nano. A local user could exploit a format string vulnerability in the `statusline()` function. By creating a directory with a name containing `printf` specifiers, the application attempts to display this name, leading to a segmentation fault (SEGV). This results in a Denial of Service (DoS) for the `nano` application.

## Key facts

- **CVE ID:** CVE-2026-6843
- **Published:** 2026-04-22
- **CVSS severity:** MEDIUM
- **CVSS base score:** 5.5
- **CWE codes:** CWE-134

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6843

## Citation

> AI Analytics. CVE-2026-6843. Retrieved 2026-07-20 from https://api.ai-analytics.org/cve/CVE-2026-6843. Derived from NIST NVD. Licensed CC0.

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