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CVE-2026-44795 — Vulnerability in io.spinnaker.orca:orca-core —...

HIGH

Spinnaker has non-safe yaml deserialization, allowing RCE when using specific types

Published June 22, 2026Updated September 10, 2026Source: osv

Summary

### Impact There's an unsafe YAML processing vulnerability that bypasses safe deserialization. This impacts users when when performing: * CloudFormation deployments * CloudFoundry Baking The usage of a non-safe constructor use allows arbitrary loading of Java classes leading to RCE. ### Patches 2025.3.3, 2026.0.3 and 2025.4.4. ### Workarounds Disable the CloudFormation system and cloudfoundry baking operations. ### Resources Join Spinnaker on Slack for more information!

Advisory Timeline

  • First published June 22, 2026 (112 days ago).
  • Last revised September 10, 2026 — 79 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Maven
Update io.spinnaker.orca:orca-core to 2025.3.3 or later
<!-- Update pom.xml dependency version to 2025.3.3 for io.spinnaker.orca:orca-core -->
Maven
Update io.spinnaker.rosco:rosco-core to 2025.4.4 or later
<!-- Update pom.xml dependency version to 2025.4.4 for io.spinnaker.rosco:rosco-core -->
Maven
Update io.spinnaker.orca:orca-core to 2025.4.4 or later
<!-- Update pom.xml dependency version to 2025.4.4 for io.spinnaker.orca:orca-core -->
Maven
Update io.spinnaker.orca:orca-core to 2026.0.3 or later
<!-- Update pom.xml dependency version to 2026.0.3 for io.spinnaker.orca:orca-core -->
Maven
Update io.spinnaker.rosco:rosco-core to 2025.3.3 or later
<!-- Update pom.xml dependency version to 2025.3.3 for io.spinnaker.rosco:rosco-core -->
Maven
Update io.spinnaker.rosco:rosco-core to 2026.0.3 or later
<!-- Update pom.xml dependency version to 2026.0.3 for io.spinnaker.rosco:rosco-core -->

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (6)

Affects 1 ecosystem: maven (2).

PackageEcosystemAffectedFixed In
io.spinnaker.orca:orca-core
maven
2025.0-0, 2025.0-1, 2025.0-10, 2025.0-12 (+508 more)2025.3.3
io.spinnaker.rosco:rosco-core
maven
2025.4-0, 2025.4-1, 2025.4-10, 2025.4-11 (+22 more)2025.4.4
io.spinnaker.orca:orca-core
maven
2025.4-0, 2025.4-1, 2025.4-10, 2025.4-11 (+22 more)2025.4.4
io.spinnaker.orca:orca-core
maven
2026.0-0, 2026.0-1, 2026.0-10, 2026.0-11 (+23 more)2026.0.3
io.spinnaker.rosco:rosco-core
maven
1.10.0, 1.11.0, 1.12.0, 1.12.1 (+456 more)2025.3.3
io.spinnaker.rosco:rosco-core
maven
2026.0-0, 2026.0-1, 2026.0-10, 2026.0-11 (+23 more)2026.0.3

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.5 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N

Frequently Asked Questions

What is CVE-2026-44795?
Spinnaker has non-safe yaml deserialization, allowing RCE when using specific types This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.5/10).
How do I check if my project is affected by CVE-2026-44795?
CVE-2026-44795 affects io.spinnaker.orca:orca-core and io.spinnaker.rosco:rosco-core. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-44795 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.5

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-c8q4-9h32-2ww8

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