GitHub Advisoryadvisory · npm

GHSA-mvhf-547c-h55r thumbler allows OS Command Injection

CRITICAL Published 2026-03-25 Modified 2026-03-31 Official page ↗
Aliases
CVE-2026-26833
Ecosystem
npm
Packages
thumbler
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-78, CWE-94
Reviewed
2026-03-31

Affected packages

• npm thumbler: <= 1.1.2 (no fix yet)

Description

thumbler through 1.1.2 allows OS command injection via the input, output, time, or size parameter in the thumbnail() function because user input is concatenated into a shell command string passed to child_process.exec() without proper sanitization or escaping.

Related

Alias · CVE (1)

  • CVE-2026-26833 thumbler through 1.1.2 allows OS command injection via the input, output, time, or size parameter in the thumbnail() function because user… vulnerability

Weakness · CWE (2)

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness
  • CWE-94 Improper Control of Generation of Code weakness

References