CVE-2026-44938

HighCVSS 8.8

Published: 07/07/2026(UTC)Updated: 08/07/2026(UTC)Translated: 09/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.51%

40th percentile - higher than 40% of all known CVEs

Summary

A vulnerability in Fleet allows an attacker with git push access to overwrite Pod Security Standards (PSS) enforcement labels on a target namespace. This occurs because the agent-side deployer does not filter security-sensitive keys from namespaceLabels in fleet.yaml.

Risk Assessment

An attacker can weaken admission controls and deploy workloads that PSS policies would otherwise block, leading to Kubernetes cluster security compromise.

Recommendation

Immediately update Fleet to a version that filters sensitive keys from namespaceLabels. Also restrict access to Git repositories monitored by Fleet.

Original NVD description (English source)

A vulnerability has been identified in Fleet's agent-side deployer, which did not filter security-sensitive keys from namespaceLabels in fleet.yaml (or BundleDeployment.spec.options.namespaceLabels) when applying them to the target namespace. An attacker with git push access to a Fleet-monitored repository could overwrite Pod Security Standards (PSS) enforcement labels on a target namespace. This allows the attacker to weaken admission controls and deploy workloads that PSS policies would otherwise block.