CVE-2026-6843 — Nano: nano: format string vulnerability leads to denial of service
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` specif…
Published: 2026-04-22 · CVSS: 5.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7