Review reviewHigh

CVE-2026-44795

spinnaker

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.

CVSS: 8.8
EPSS: 0.54%
CISA KEV: Not listed
Published: 2026.07.11

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.54%

Technical severityCVSS 8.8

Vulnerability overview

Affected product and versions

Product: spinnaker
Affected versions: >= >= 2025.4.0, < 2025.4.4, >= >= 2026.0.0, < 2026.0.3, >= < 2025.3.3, < 2025.3.3, >= 2025.4.0 < 2025.4.4, >= 2026.0.0 < 2026.0.3
Fixed versions: 2025.3.3, 2025.4.4, 2026.0.3

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that spinnaker and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-470, CWE-502