high8.8
CVE-2026-44795
Spinnaker has non-safe yaml deserialization, allowing RCE when using specific types
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | io.spinnaker.rosco:rosco-core | < 2025.3.3 | 2025.3.3 |
| maven | io.spinnaker.orca:orca-core | < 2025.3.3 | 2025.3.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linuxfoundation | Spinnaker | before 2025.3.3 from 2025.4.0 before 2025.4.4 from 2026.0.0 before 2026.0.3 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-c8q4-9h32-2ww8
- https://github.com/spinnaker/spinnaker/security/advisories/GHSA-c8q4-9h32-2ww8
- https://nvd.nist.gov/vuln/detail/CVE-2026-44795
- https://github.com/spinnaker/spinnaker/commit/4cbe1d5fea9df573aadfd8b093fb4b594b354ee5
- https://github.com/spinnaker/spinnaker/commit/e57c0db4584b398473a7bbb19402ce6c1e89b627
- https://github.com/spinnaker/spinnaker/commit/f69d7b534d068ed74d0d3a1fbf17e2c945d36e5e