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CVE-2026-26833 — Vulnerability in thumbler — CVE Details

CRITICAL

thumbler allows OS Command Injection

Published March 25, 2026Updated March 31, 2026Source: osv

Summary

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.

Advisory Timeline

  • First published March 25, 2026 (201 days ago).
  • Last revised March 31, 2026 — 6 days after initial publication.

Affected Packages (1)

Affects 1 ecosystem: npm (1).

PackageEcosystemAffectedFixed In
thumbler
npm
All versionsRange-based data available

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2026-26833?
thumbler allows OS Command Injection This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2026-26833?
CVE-2026-26833 affects thumbler. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-26833 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-mvhf-547c-h55r

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