DEBIAN-CVE-2026-121550

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    DEBIAN-CVE-2026-121550

    Published: 3 Nov 2026Last Modified: 6 Nov 2026
    Upstream:
    CVE-2026-121550

    Summary:

    Details: 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.

    References: https://security-tracker.debian.org/tracker/CVE-2026-121550

    Affected packages

    Package

    Name: nnn

    Purl: pkg:deb/debian/nnn?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.7-1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    DEBIAN-CVE-2026-121550 | CVE-DB