CVE-2026-121550: jarun nnn: nnn through 5.3 contains an insecure file handling vulnerability that allows local attackers to redirect writes because…

nnn through 5.3 contains an insecure file handling vulnerability that allows local attackers to redirect writes because main accepts an existing NNNFIFO path without verifying it is a FIFO. Attackers can pre-create the documented predictable /tmp/nnn.fifo path as a symlink or readable regular fil...