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 input is…

Critical · published March 25, 2026

CVSS v3.1
9.8
EPSS
3%
Percentile
88.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.03433 · 88.9th percentile
Published
2026-03-25T00:00Z
EPSS history
Timeline
  • 25 MAR 00:00Z
    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…
    cvelistv5