HomeCVE Intelligence › CVE-2026-44938
CVSS 8.8 HIGH Vulnerability

CVE-2026-44938: Fleet has PSS Bypass through addLabelsFromOptions in Fleet Agent

Impact 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…

8.8CVSS Score
HIGHSeverity
NOCISA KEV
VulnerabilityImpact Type

📋 Vulnerability Details

CVE IDCVE-2026-44938
Vendorgo
Affected Productgithub.com/rancher/fleet
Vulnerability TypeVulnerability
CVSS Score8.8 (HIGH)
Actively Exploited❌ No known exploitation
Patch StatusSee Vendor Advisory →
Reported ByCYBERDUDEBIVASH SENTINEL APEX Intelligence (via github_advisories)

🔬 Technical Analysis

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Impact

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. Important: The final impact on confidentiality, integrity, and availability depends on the specific permissions of the leaked credentials. Fleet team recommends you: 1. Review your system for potentially leaked credentials. 2. Replace any credentials that may be com

📚 Advisory References

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