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 concatenated into a shell command string passed to child_process.exec() without proper sanitization or…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.31%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.31% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78, CWE-94
- Affected
- mmahrous/thumbler
- Source
- cve@mitre.org
References
- https://github.com/mmahrous/thumblerProduct
- https://github.com/mmahrous/thumbler/blob/master/lib/thumbler.jsNot Applicable
- https://github.com/zebbernCVE/CVE-2026-26833Exploit, Vendor Advisory
- https://www.npmjs.com/package/thumblerProduct
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.