CVE-2026-121548

high

Description

Jarun nnn through 5.3 contains an OS command injection vulnerability in plugins/togglex that allows attackers to execute commands via crafted filenames. Attackers can place files whose names contain a double quote and shell syntax, which xargs -I splices into an sh -c script, running commands as the user invoking togglex.

References

https://www.vulncheck.com/advisories/nnn-through-5.3-os-command-injection-via-togglex-plugin

https://github.com/jarun/nnn/issues/2188

https://github.com/jarun/nnn/commit/04715921aece0257fef7a8558c0783493d98efff

https://github.com/jarun/nnn/blob/v5.3/plugins/togglex#L15

https://github.com/jarun/nnn

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-115893

Details

Source: Mitre, NVD

Published: 2026-11-03

Updated: 2026-11-03

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

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

Severity: High

CVSS v4

Base Score: 8.4

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.01152