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GHSA-mw24-f3xh-j3qv

HighCVSS 7.9 / 10
Published Mar 16, 2026·Last modified Mar 26, 2026
Affected Components(0)

No affected components available

Description

Impact

Due to a mis-written NetworkPolicy, a malicious actor can pivot from an instance to any Pod out of the origin namespace. This breaks the security-by-default property expected as part of the deployment program, leading to a potential lateral movement. In the specific case of sdk/kubernetes.Kompose it does not isolate the instances.

Patch

Removing the inter-ns NetworkPolicy patches the vulnerability. If updates are not possible in production environments, we recommend to manually delete it and update as soon as possible.

Workaround

Given your context, delete the failing network policy that should be prefixed by inter-ns- in the target namespace. You can use the following to delete all matching network policy. If unsure of the outcome, please do it manually.

for ns in $(kubectl get ns -o jsonpath='{.items[*].metadata.name}' | tr ' ' '\n' | grep '^cm-target-'); do
  kubectl -n "$ns" get networkpolicy -o name \
  | grep '^networkpolicy.networking.k8s.io/inter-ns-' \
  | xargs -r kubectl -n "$ns" delete
done
Risk Scores
Base Score
7.9

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
5.0

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.28%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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