CVE-2026-121550
Low · 3.3CVSS
3.3
EPSS
0.1%
Published
Nov 3, 2026
CISA due date
—
The record
nnn through 5.3 contains an insecure file handling vulnerability that allows local attackers to redirect writes because main() accepts an existing NNN_FIFO path without verifying it is a FIFO. Attackers can pre-create the documented predictable /tmp/nnn.fifo path as a symlink or readable regular file, causing victim-writable files to be overwritten or leaking the victim's browsed paths.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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