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 attac…
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.
CVSS v4.0 base metrics
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XCritical severity
Band computed from the CVSS base score, not the source's own label — so it means the same thing across every feed.
AV
Network
Attack Vector
AC
Low
Attack Complexity
AT
None
Attack Requirements
PR
None
Privileges Required
UI
None
User Interaction
VC
High
Confidentiality (Vulnerable System)
VI
High
Integrity (Vulnerable System)
VA
High
Availability (Vulnerable System)
SC
None
Confidentiality (Subsequent System)
SI
None
Integrity (Subsequent System)
SA
None
Availability (Subsequent System)
References
- advisory[email protected]https://gist.github.com/R3tro16/a99a058d24a06692721a6a3fade9649d
- advisory[email protected]https://github.com/jtescher/image_optimizer
- advisory[email protected]https://github.com/jtescher/image_optimizer/blob/v1.9.0/lib/image_optimizer.rb#L37-L47
- advisory[email protected]https://github.com/jtescher/image_optimizer/blob/v1.9.0/lib/image_optimizer/shell.rb#L30-L32
- advisory[email protected]https://www.vulncheck.com/advisories/image-optimizer-1.3.0-through-1.9.0-os-command-injection-via-identify-format
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