CVE-2026-6843

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.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-26)

CWE

CWE-134

Published

2026-04-22

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• gnu:nano
• redhat:enterprise_linux
• redhat:openshift_container_platform

References

• https://access.redhat.com/security/cve/CVE-2026-6843
• https://bugzilla.redhat.com/show_bug.cgi?id=2460017

Check your stackJSON