High severity · published Jul 7, 2026
CVE-2026-44938
Fleet has PSS Bypass through addLabelsFromOptions in Fleet Agent
8.8
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RA
Rancher · SUSE
0.15.0 before 0.15.2; 0.14.0 before 0.14.6; 0.13.0 before 0.13.11; 0.12.0 before 0.12.15 · source: vendor
RF
Rancher Fleet · Suse
0.12.0 before 0.12.15; 0.13.0 before 0.13.11; 0.14.0 before 0.14.6; 0.15.0 before 0.15.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-44938
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-44938
Permissions Required
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-44938
Vendor Advisory
https://github.com/advisories/GHSA-864g-863m-vcvq
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