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.

SeverityHigh

CVSS7.8

Exploit probability—

ProductJarun Nnn

PublishedNov 3, 2026

First seenNov 4, 2026

Weakness typeCWE-78OS command injection

How to fix

Patches

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

Affected products

Product	Affected versions	Fixed in
jarun nnn	v ≤ 5.3	—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.