CVE-2026-2270
StatefulSet and ControllerRevision write permissions allow cross-namespace pod creation
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
A confused deputy attack exists in the StatefulSet controller that allows a user with namespace-scoped write permissions on StatefulSet and ControllerRevision objects to create a cross-namespace pod. An attacker exploiting this vulnerability would have full control over the resulting pod’s metadata and specification, including namespace selection. Note that the cross-namespace pod will be immediately deleted by the garbage collector unless the attacker is able to construct a valid StatefulSet OwnerReference. This would require referencing the UID of an existing StatefulSet in the victim’s namespace.
| CWE | CWE-639 |
| Vendor | kubernetes |
| Product | kubernetes |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 26, 2026 |
| Last Updated | Oct 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
Kubernetes / Kubernetes
v1.34.0 ≤ v1.34.11 v1.35.0 ≤ v1.35.8 v1.36.0 ≤ v1.36.4 v1.37.0 ≤ v1.37.0
References
Credits
ImanOracle