CVE-2026-26833

critical · 9.8

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.

9.8

CVSS

2.3%

EPSS (exploit prob.)

83rd

EPSS percentile

2026-03-25

Published

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

Weaknesses

CWE-78CWE-94

Affected products

Vendor	Product	Affected versions
mmahrous	thumbler	<= 1.1.2

Check a specific version with /api/v1/cve/match.

References

https://github.com/mmahrous/thumbler
https://github.com/mmahrous/thumbler/blob/master/lib/thumbler.js
https://github.com/zebbernCVE/CVE-2026-26833
https://www.npmjs.com/package/thumbler

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-26833