What’s Vulnerable › Vulnerabilities

CVE-2026-26833

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-25 · updated 2026-06-17
• Weakness: CWE-78

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.

Affected products

• Mmahrous Thumbler: through 1.1.2

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

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