CVE-2026-44795

Spinnaker: Non-safe yaml deserialization allowing RCE when using specific types

State
Published
Severity
8.8 High
Published
Jul 10, 2026
Updated
Jul 15, 2026
Reserved
May 7, 2026

Read the record on cve.org

Description

Spinnaker is an open source, multi-cloud continuous delivery platform. Prior to 2026.1.0, 2026.0.3, 2025.4.4, and 2025.3.3, unsafe YAML processing bypasses safe deserialization when using CloudFormation deployments or CloudFoundry baking. The use of a non-safe constructor allows arbitrary loading of Java classes, leading to remote code execution. This issue is fixed in versions 2026.1.0, 2026.0.3, 2025.4.4, and 2025.3.3.

Scores

CVSSScoreVectorSource
3.18.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HGitHub_M

Weaknesses

  • CWE-470 Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
  • CWE-502 Deserialization of Untrusted Data

Affected Products

ProductVersions
spinnakerspinnaker
  • >= 2025.4.0, < 2025.4.4Affected
  • >= 2026.0.0, < 2026.0.3Affected
  • < 2025.3.3Affected

References

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