---
id: CVE-2026-121548
title: nnn through 5.3 OS Command Injection via togglex Plugin
summary: >-
  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…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-78
vendor: jarun
product: nnn
affected:
  - nnn <= 5.3
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-03T16:45:48.239137Z'
exploitAvailable: true
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T16:47:00.917Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121548'
references:
  - url: 'https://github.com/jarun/nnn/issues/2188'
    label: 'GitHub Issue #2188'
  - url: 'https://github.com/jarun/nnn'
  - url: >-
      https://github.com/jarun/nnn/commit/04715921aece0257fef7a8558c0783493d98efff
    label: Fix commit
  - url: 'https://github.com/jarun/nnn/blob/v5.3/plugins/togglex#L15'
  - url: >-
      https://www.vulncheck.com/advisories/nnn-through-5.3-os-command-injection-via-togglex-plugin
    label: >-
      VulnCheck Advisory: nnn through 5.3 OS Command Injection via togglex
      Plugin
tags:
  - cve.org
  - exploit-available
epss: 0.01152
epssPercentile: 0.67052
ingestedAt: '2026-11-05T20:33:06.288Z'
---

## Overview

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.

## Affected

- `nnn <= 5.3`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.