CVE-2026-121548: high-severity vulnerability in jarun nnn
nnn through 5.3 OS Command Injection via togglex Plugin
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.4epss 1.2%
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.
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
Affected products
jarun · nnnRelated CVEs — jarun nnn
In the same product, most dangerous first.
References
https://github.com/jarun/nnnhttps://github.com/jarun/nnn/blob/v5.3/plugins/togglex#L15https://github.com/jarun/nnn/commit/04715921aece0257fef7a8558c0783493d98efffhttps://github.com/jarun/nnn/issues/2188https://www.vulncheck.com/advisories/nnn-through-5.3-os-command-injection-via-togglex-plugin