CVE-2026-107704
image_optimizer 1.3.0 through 1.9.0 OS Command Injection via identify_format
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-78 |
| Vendor | jtescher |
| Product | image_optimizer |
| Published | Oct 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
jtescher / image_optimizer
1.3.0 ≤ 1.9.0
References
gist.github.com: https://gist.github.com/R3tro16/a99a058d24a06692721a6a3fade9649d github.com: https://github.com/jtescher/image_optimizer/blob/v1.9.0/lib/image_optimizer.rb#L37-L47 github.com: https://github.com/jtescher/image_optimizer/blob/v1.9.0/lib/image_optimizer/shell.rb#L30-L32 github.com: https://github.com/jtescher/image_optimizer vulncheck.com: https://www.vulncheck.com/advisories/image-optimizer-1.3.0-through-1.9.0-os-command-injection-via-identify-format
Credits
William Pierson (Retro16)