CVE-2026-2270

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 47/100
Published: 2026-10-26 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: High
PR: High
UI: None
S: Unchanged
C: High
I: High
A: None

Description

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
Kubernetes Kubernetes v1.34.0

Bug Bounty Relevance

47 / 100
✓ Network accessible
✓ No user interaction

CVSS Score

5.9 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploitation Probability

0.34%
Raw Score 0.003380
Percentile 27.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00338
2026-10-28
0.00338

Intelligence Sources

mitre ref →
nvd ref →