Is CVE-2026-26833 actively exploited?

No active exploitation of CVE-2026-26833 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-26833 be exploited remotely?

Yes. CVE-2026-26833 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-26833?

CVE-2026-26833 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-26833

Published: March 25, 2026· Updated: Mar 30, 2026

9.8

CVSS v3.1

EPSS:0.10%probability of exploitation in 30 daysPercentile:27.8th

Official 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.

NVD Source

Technical Analysis

CVE-2026-26833 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.