All vulnerabilities
CVE-2026-107704

image_optimizer 1.3.0 through 1.9.0 OS Command Injection via identify_format

jtescher image_optimizer
Open in ThreatlineRecord JSON
CVSS
9.3Critical
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 9 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)1.66%Chance of exploitation activity in the next 30 days, higher than 76% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published8 Oct 2026Updated 9 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 1

  • image_optimizeraffected: 1.3.0 through 1.9.0CVE List

References 5