CVE-2026-65612

Name	CVE-2026-65612
Description	nnn does not sanitize the filename variable. An attacker can place a file with a crafted name on a shared filesystem, removable media, or inside an extracted archive whose name contains a single quote followed by shell syntax. If the victim navigates to that file and opens it with preview-tabbed, the filename is embedded into the generated shell command and the injected payload executes with the privileges of the nnn process. Maintainer of this project was notified about this vulnerability. It might has been addressed, but the maintainer did not provide a vulnerable version range. Only version 5.2 was tested and confirmed as vulnerable.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1145170

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
nnn (PTS)	bookworm	4.7-1	vulnerable
	trixie	5.0-1	vulnerable
	forky, sid	5.3-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
nnn	source	(unstable)	(unfixed)			1145170

[trixie] - nnn <no-dsa> (Minor issue)
[bookworm] - nnn <postponed> (Minor issue)
https://cert.pl/en/posts/2026/08/CVE-2026-65609