CVE-2026-114278Published

Unauthenticated Command Injection via kubeconfig Username in che-machine-exec

Exact source revision recorded 28 Oct 2026 12:47:04 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-114278

Published

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).

Source published: 28 Oct 2026 11:55:05 UTC
Source modified: 28 Oct 2026 11:55:05 UTC
Observed here: 28 Oct 2026 12:47:04 UTC
Source terms: CVE Program Terms of Use

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CVSS 3.1 · 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H