Eclipse Che Machine Exec Remote Code Execution via Shell Injection
CVE-2026-114278 Published on October 28, 2026
Unauthenticated Command Injection via kubeconfig Username in che-machine-exec
The che-machine-exec service constructs a shell command by concatenating user-controlled input (the username and namespace fields from the /exec/init and /exec/config JSON endpoints) into a double-quoted sh -c "echo "..." > ..." invocation without any escaping. When che-machine-exec is run with authentication disabled (its default), any network-reachable attacker can achieve remote code execution in containers che-machine-exec is configured to access, via shell command substitution ($(...) or backticks).
Vulnerability Analysis
CVE-2026-114278 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. An automatable proof of concept (POC) exploit exists. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Shell injection Vulnerability?
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVE-2026-114278 has been classified to as a Shell injection vulnerability or weakness.
Products Associated with CVE-2026-114278
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Affected Versions
Eclipse Foundation Eclipse Che:- Version 7.0.0, <= 7.122.0 is affected.