NVD security advisoryHigh
High advisory for Jarun nnn
CVE-2026-121548 · Reported 3 Nov 2026
Full advisory details, affected packages, severity context, and original source.
Affected technology
Jarun nnnAffected product
Advisory 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.
Related references
- https://github.com/jarun/nnn
- https://github.com/jarun/nnn/blob/v5.3/plugins/togglex#L15
- https://github.com/jarun/nnn/commit/04715921aece0257fef7a8558c0783493d98efff
- https://github.com/jarun/nnn/issues/2188
- https://www.vulncheck.com/advisories/nnn-through-5.3-os-command-injection-via-togglex-plugin
- https://github.com/jarun/nnn/issues/2188