CVE-2026-62371
KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. From 1.12.0 until 1.21.2, 1.22.2, and 1.23.1, the v1alpha2 NodeUpgradeJob handler in edge/pkg/taskmanager/actions/nodeupgradejob.go concatenates authenticated user-controlled spec.version and spec.image values into the keadm upgrade edge shell command. A user with permission to create or update NodeUpgradeJob resources can supply shell metacharacters in either field, causing arbitrary commands to execute on targeted edge nodes with the privileges of the upgrade process and compromising node confidentiality, integrity, and availability. This issue is fixed in versions 1.21.2, 1.22.2, and 1.23.1.
What this means for your business
- An attacker can use it remotely, over a network, with an ordinary user login, and without anyone at your company clicking anything.
- FIRST's prediction model gives it a 0.5% chance of attack attempts being seen in the next 30 days, ranking above 40% of all known flaws.
What to do
- 1Ask your IT team or provider whether any of your systems use the affected product.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
Not sure if your company is exposed?
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Scoring
- CVSS
- 8.8 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness
- CWE-78
- Assigned by
- security-advisories@github.com
Dates
- Published
- 2026-09-21
- Last modified
- 2026-09-24
- Sources
- NVD
References
- https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.21.md
- https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.22.md
- https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.23.md
- https://github.com/kubeedge/kubeedge/commit/552af457a4c7ce80ea1678ab5889f475b36ea103
- https://github.com/kubeedge/kubeedge/commit/657b745bebcdd7a221eb34c0aac13231ef12c37f
- https://github.com/kubeedge/kubeedge/commit/b72db7f8a0f7be23261b4349eab33024b2007df0
- https://github.com/kubeedge/kubeedge/pull/7028
- https://github.com/kubeedge/kubeedge/pull/7029
- https://github.com/kubeedge/kubeedge/pull/7030
- https://github.com/kubeedge/kubeedge/releases/tag/v1.21.2
- https://github.com/kubeedge/kubeedge/releases/tag/v1.22.2
- https://github.com/kubeedge/kubeedge/releases/tag/v1.23.1
- https://github.com/kubeedge/kubeedge/security/advisories/GHSA-5jpj-293f-rhvj