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CVE-2026-107704— image_optimizer 1.3.0 through 1.9.0 OS Command Injection via identify_format

Quick assessment

Affected
jtescher image_optimizer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Ruby Gems 中的 image_optimizer 1.3.0 到 1.9.0 版本存在操作系统命令注入漏洞。该漏洞位于 方法中，当启用 选项时，攻击者可通过提供精心构造的图像路径来执行任意命令。 如果攻击者能够控制图像路径（例如通过上传文件名），则可以在路径中注入 shell 元字符（如分号 ），这些字符将通过 Ruby 的反引号（backticks）执行，并以当前 Ruby 进程的权限运行。

CVSS 9.8 · Critical

Affected Version Matrix 1

VendorProduct Version RangeStatus
jtescher image_optimizer 1.3.0≤ 1.9.0 affected
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I. Basic Information for CVE-2026-107704

Vulnerability Information
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Vulnerability Title
image_optimizer 1.3.0 through 1.9.0 OS Command Injection via identify_format
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
jtescher image_optimizer 1.3.0 ~ 1.9.0 -

II. Public POCs for CVE-2026-107704

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III. Intelligence Information for CVE-2026-107704

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Other References for CVE-2026-107704 (5)

IV. Related Vulnerabilities

Same weakness: CWE-78

V. Comments for CVE-2026-107704

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