CVE-2026-107704

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gist.github.com/R3tro16/a99a058d24a06692721a6a3fade9649d
https://github.com/jtescher/image_optimizer
https://github.com/jtescher/image_optimizer/blob/v1.9.0/lib/image_optimizer.rb#L37-L47
https://github.com/jtescher/image_optimizer/blob/v1.9.0/lib/image_optimizer/shell.rb#L30-L32
https://www.vulncheck.com/advisories/image-optimizer-1.3.0-through-1.9.0-os-command-injection-via-identify-format
https://gist.github.com/R3tro16/a99a058d24a06692721a6a3fade9649d

Configurations

No configuration.

History

09 Oct 2026, 15:17

Type	Values Removed	Values Added
References	~~() https://gist.github.com/R3tro16/a99a058d24a06692721a6a3fade9649d -~~	() https://gist.github.com/R3tro16/a99a058d24a06692721a6a3fade9649d -

08 Oct 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-08 19:17

Updated : 2026-10-09 15:17

NVD link : CVE-2026-107704

Mitre link : CVE-2026-107704

CVE.ORG link : CVE-2026-107704

JSON object : View

Products Affected

No product.

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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