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CVE-2026-55175— Spinnaker: Improper yaml processing on kustomize bake operations

Quick assessment

Affected
spinnaker spinnaker
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Spinnaker是Spinnaker团队开源的一个持续交付平台。用于以高速度和高信心发布软件更改。 Spinnaker存在反序列化注入漏洞，该漏洞源于Kustomize bake操作中不安全的YAML标签处理，可能导致在rosco manifests中进行Kustomize bake时执行远程代码。以下版本受到影响：2026.1.1之前版本、2026.0.3之前版本、2025.4.4之前版本和2025.3.4之前版本。

CVSS 7.5 · High EPSS 1.06% · P64

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 4

VendorProduct Version RangeStatus
spinnaker spinnaker >= 2026.1.0, < 2026.1.1 affected
>= 2026.0.0, < 2026.0.3 affected
>= 2025.4.0, < 2025.4.4 affected
< 2025.3.4 affected
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I. Basic Information for CVE-2026-55175

Vulnerability Information
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Vulnerability Title
Spinnaker: Improper yaml processing on kustomize bake operations
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
Spinnaker 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Spinnaker是Spinnaker团队开源的一个持续交付平台。用于以高速度和高信心发布软件更改。 Spinnaker存在反序列化注入漏洞，该漏洞源于Kustomize bake操作中不安全的YAML标签处理，可能导致在rosco manifests中进行Kustomize bake时执行远程代码。以下版本受到影响：2026.1.1之前版本、2026.0.3之前版本、2025.4.4之前版本和2025.3.4之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
spinnaker spinnaker >= 2026.1.0, < 2026.1.1 -

II. Public POCs for CVE-2026-55175

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III. Intelligence Information for CVE-2026-55175

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Patches & Fixes for CVE-2026-55175 (6)

Vendor Advisories for CVE-2026-55175 (1)

Vendor Pages for CVE-2026-55175 (4)

IV. Related Vulnerabilities

Same product: spinnaker
Same vendor: spinnaker
Same weakness: CWE-502

V. Comments for CVE-2026-55175

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