CVE-2026-114278
The che-machine-exec service constructs a shell command by concatenating user-controlled input (the username and namespace fields from the /
CVSS
9.8
Critical
EPSS
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KEV
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Exploit Today
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0-100
Published: Oct 28, 2026 · Last modified: Oct 28, 2026 · CWE-78
Not enough EPSS history yet.
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).