CVE-2026-26833

Name: CVE-2026-26833
Creator: NVD / NIST
Published: 2026-03-25T16:16:21.39+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.31%

Last modified Jun 17, 2026

CVE-2026-26833 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.31% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.31%

81.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mmahrous	Thumbler	<= 1.1.2

References

https://github.com/mmahrous/thumblerProduct
https://github.com/mmahrous/thumbler/blob/master/lib/thumbler.jsNot Applicable
https://github.com/zebbernCVE/CVE-2026-26833Exploit, Vendor Advisory
https://www.npmjs.com/package/thumblerProduct

Timeline

Published: Mar 25, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-26833?

How severe is CVE-2026-26833?

CVE-2026-26833 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.31% probability of exploitation in the next 30 days.

How do I fix CVE-2026-26833?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-26833?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST