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.
Published: 2026-10-08
Score: 9.3 Critical
EPSS: 1.7% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 09 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 09 Oct 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Jtescher
Jtescher image Optimizer
Vendors & Products Jtescher
Jtescher image Optimizer

Thu, 08 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
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.
Title image_optimizer 1.3.0 through 1.9.0 OS Command Injection via identify_format
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Jtescher Image Optimizer
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-09T14:05:27.930Z

Reserved: 2026-10-08T16:52:24.549Z

Link: CVE-2026-107704

cve-icon Vulnrichment

Updated: 2026-10-09T14:04:49.044Z

cve-icon NVD

Status : Deferred

Published: 2026-10-08T19:17:02.897

Modified: 2026-10-09T15:17:08.667

Link: CVE-2026-107704

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-09T14:45:07Z

Weaknesses
  • CWE-78

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