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).
History

Fri, 06 Nov 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 06 Nov 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Wed, 28 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Eclipse
Eclipse eclipse Che
Vendors & Products Eclipse
Eclipse eclipse Che

Wed, 28 Oct 2026 12:00:00 +0000

Type Values Removed Values Added
Description 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).
Title Unauthenticated Command Injection via kubeconfig Username in che-machine-exec
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: eclipse

Published: 2026-10-28T11:55:05.600Z

Updated: 2026-11-05T18:25:29.572Z

Reserved: 2026-10-21T07:46:52.004Z

Link: CVE-2026-114278

cve-icon Vulnrichment

Updated: 2026-11-05T18:24:48.999Z

cve-icon NVD

Status : Deferred

Published: 2026-10-28T12:17:39.773

Modified: 2026-11-05T19:17:09.820

Link: CVE-2026-114278

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-28T11:55:05Z

Links: CVE-2026-114278 - Bugzilla