Remote Code Execution in Spinnaker Kustomize Bake

Publication date: 2026-07-10

Last updated on: 2026-07-10

Assigner: GitHub, Inc.

Description

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.

CVSS Scores

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Meta Information

Published

2026-07-10

Last Modified

2026-07-10

Generated

2026-07-11

AI Q&A

2026-07-11

EPSS Evaluated

N/A

NVD

CVE-2026-55175

Affected Vendors & Products

Vendor	Product	Version / Range
spinnaker	spinnaker	to 2025.3.4 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-502	The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Attack-Flow Graph

Executive Summary

This vulnerability exists in Spinnaker, an open source multi-cloud continuous delivery platform. Specifically, prior to certain fixed versions, the Kustomize bake operations in Spinnaker's rosco manifests allow unsafe processing of YAML tags. This unsafe processing can lead to remote code execution on rosco pods when performing Kustomize bakes.

Impact Analysis

The vulnerability can allow an attacker to execute arbitrary code remotely on rosco pods within the Spinnaker environment. This can compromise the integrity, confidentiality, and availability of the affected system, potentially leading to unauthorized access, data breaches, or disruption of continuous delivery operations.

Mitigation Strategies

To mitigate this vulnerability, upgrade Spinnaker to one of the fixed versions: 2026.1.1, 2026.0.3, 2025.4.4, or 2025.3.4, depending on your release line.

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