Paper/Archive/CVE-2026-26833

CVE-2026-26833

mitre — thumbler through 1.1.2 allows OS command injection via the input, output, time, or size parameter in the thumbnail() function because use…

EPSS 2%public exploit CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (ADP, NVD agree)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 84.0.840 × 2016.8 Exploit: SSVC poc+1010.0 SSVC exploitation: poc+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

n/an/a–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

refgithub.com/mmahrous/thumbler refnpmjs.com/package/thumbler refgithub.com/mmahrous/thumbler/blob/master/lib/thumbler.js refgithub.com/zebbernCVE/CVE-2026-26833