CVE-2026-26833

CVSS 9.8 CRITICALEPSS 2.3%CWE-94

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.8EPSS 2.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

25 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

n/a · n/a

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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