Critical severity9.8NVD Advisory· Published Oct 8, 2026
CVE-2026-107704
CVE-2026-107704
Description
The image_optimizer Ruby gem 1.3.0 through 1.9.0 contains an OS command injection vulnerability in ImageOptimizer#identify_format that allows attackers to execute commands by supplying a crafted image path when the identify option is enabled. Attackers controlling the path, such as an uploaded file name, can append shell metacharacters like ';' that are executed via Ruby backticks with the Ruby process privileges.
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Affected products
1- Range: 1.3.0 - 1.9.0
Patches
Vulnerability mechanics
References
4- gist.github.com/R3tro16/a99a058d24a06692721a6a3fade9649dnvd
- github.com/jtescher/image_optimizer/blob/v1.9.0/lib/image_optimizer.rbnvd
- github.com/jtescher/image_optimizer/blob/v1.9.0/lib/image_optimizer/shell.rbnvd
- www.vulncheck.com/advisories/image-optimizer-1.3.0-through-1.9.0-os-command-injection-via-identify-formatnvd
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