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CVE-2024-5742

Nano: running `chmod` and `chown` on the filename allows malicious user to replace the emergency file with a malicious symlink to a root-owned file

A vulnerability was found in GNU Nano that allows a possible privilege escalation through an insecure temporary file. If Nano is killed while editing, a file it saves to an emergency file with the permissions of the running user provides a window of opportunity for attackers to escalate privileges through a malicious symlink.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Gnu Redhat
Products
Nano Enterprise Linux Rhel Els
CVE-2026-6843

Nano: nano: format string vulnerability leads to denial of service

A flaw was found in nano. A local user could exploit a format string vulnerability in the `statusline()` function. By creating a directory with a name containing `printf` specifiers, the application attempts to display this name, leading to a segmentation fault (SEGV). This results in a Denial of Service (DoS) for the `nano` application.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Gnu Redhat
Products
Nano Enterprise Linux Nano and 3 more
CVE-2026-73086

nanoid: Integer Overflow or Wraparound

nanoid is a secure, URL-friendly, unique string ID generator for JavaScript. Prior to versions 3.3.12 and 5.1.11, the nanoid(size) function in index.js and index.cjs coerces the user-influenced size parameter to a signed 32-bit integer, allowing a value of 2147483648 to become -2147483648 and corrupt the process-wide CSPRNG poolOffset in fillPool(), which causes subsequent session tokens, CSRF tokens, API keys, and unique identifiers to become the deterministic string "uuuuuuuuuuuuuuuuuuuuu" until the process restarts. This issue is fixed in versions 3.3.12 and 5.1.11.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Nanoid Project Redhat
Products
Nanoid Hummingbird
CVE-2021-23566

Information Exposure

The package nanoid from 3.0.0 and before 3.1.31 are vulnerable to Information Exposure via the valueOf() function which allows to reproduce the last id generated.

CVSS 3.1 · 4 Medium EPSS < 1% KEV · Not listed
Vendors
Nanoid Project Redhat
Products
Nanoid Acm Openshift and 1 more