CVE-2026-55175 Linuxfoundation — Exploit & Vulnerability Details HIGH

Parameter	Value
CVSS	7.5 (HIGH)
Affected Versions	2025.3.0 — 2026.1.1
Fixed In	2025.3.4
Type	CWE-502 (Deserialization of Untrusted Data)
Vendor	Linuxfoundation
Public PoC	No

Spinnaker is an open source, multi-cloud continuous delivery platform. Prior to versions 2026.1.1, 2026.0.3, 2025.4.4, and 2025.3.4 on their respective release lines, Kustomize bake operations allow unsafe YAML tag processing in rosco manifests. This can lead to remote code execution on rosco pods when performing Kustomize bakes.

This issue is fixed in versions 2026.1.1, 2026.0.3, 2025.4.4, and 2025.3.4.

Attack Parameters

Attack Vector

Network

Can be exploited remotely

Attack Complexity

High

Difficult to exploit

Privileges Required

Low

Basic privileges needed

User Interaction

None

No user interaction needed

Impact Assessment

Confidentiality

High

Complete data leak

Integrity

High

Complete data modification

Availability

High

Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

CWE-502 Deserialization of Untrusted Data

Vulnerable Products 4

Configuration	From (including)	Up to (excluding)
Linuxfoundation Spinnaker cpe:2.3:a:linuxfoundation:spinnaker::::::::	`2025.3.0`	`2025.3.4`
Linuxfoundation Spinnaker cpe:2.3:a:linuxfoundation:spinnaker::::::::	`2025.4.0`	`2025.4.4`
Linuxfoundation Spinnaker cpe:2.3:a:linuxfoundation:spinnaker::::::::	`2026.0.0`	`2026.0.3`
Linuxfoundation Spinnaker cpe:2.3:a:linuxfoundation:spinnaker::::::::	`2026.1.0`	`2026.1.1`