CVE-2026-121550
3.3 LOWpublic exploit availablePublished 2026-11-03 · Updated 2026-11-03
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
Weaknesses
CWE-59
Public exploit & PoC references
All references
- https://github.com/jarun/nnn
- https://github.com/jarun/nnn/blob/v5.3/src/nnn.c#L10635
- https://github.com/jarun/nnn/blob/v5.3/src/nnn.c#L7433
- https://github.com/jarun/nnn/commit/04715921aece0257fef7a8558c0783493d98efff
- https://github.com/jarun/nnn/issues/2188
- https://www.vulncheck.com/advisories/nnn-through-5.3-symlink-following-write-via-nnn-fifo-handling
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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