Track vulnerabilities like this one.
Sign up free to get alerted when software you use is affected.
6.3
k3s kube-controller-manager could let attackers alter settings
published 4 days ago
Summary
The k3s distribution of Kubernetes includes a component called kube‑controller‑manager that can be tricked into accepting unauthorized commands. This could let an attacker change how the cluster operates or access data it shouldn’t. Update k3s to the latest release or apply the vendor’s patch as soon as possible.
What to do
- Update cleanstart k3s to version 1.18.3.1-r0.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| CleanStart | cleanstart | k3s |
< 1.18.3.1-r0 Fix: upgrade to 1.18.3.1-r0
|
Original advisory text
Kubernetes kube-controller-manager in versions v1
Security vulnerability affects the k3s package. The Kubernetes kube-controller-manager in versions v1.
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker partial control (estimated)
Timeline
Published31 Oct 2026
Updated31 Oct 2026
First seen31 Oct 2026
Sources
CLEANSTART-2025-RW12960 · OSV
Track software like this
Free during beta