CVE-2026-121548

EUVD-2026-115893
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.
OS Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
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