CVE-2026-44795: high-severity vulnerability in spinnaker
Spinnaker: Non-safe yaml deserialization allowing RCE when using specific types
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 1.0%
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
spinnaker · spinnakerRelated CVEs — spinnaker
In the same product, most dangerous first.
CVE-2021-43832CRITICALImproper Access Control in spinnakerEPSS 2.7%CVE-2026-55175HIGHSpinnaker: Improper yaml processing on kustomize bake operationsEPSS 1.1%CVE-2026-32604CRITICALSpinnaker vulnerable to RCE when using gitrepo artifact types due to improper sanitization of user input on branch and pathsEPSS 0.6%CVE-2022-23506MEDIUMSpinnaker's Rosco microservice vulnerable to improper log masking on AWS Packer buildsEPSS 0.6%CVE-2026-32613CRITICALSpinnaker vulnerable to RCE via expression parsing due to unrestricted context handlingEPSS 0.6%CVE-2023-39348MEDIUMImproper log output when using GitHub Status Notifications in spinnakerEPSS 0.4%
References
https://github.com/spinnaker/spinnaker/commit/4cbe1d5fea9df573aadfd8b093fb4b594b354ee5https://github.com/spinnaker/spinnaker/commit/e57c0db4584b398473a7bbb19402ce6c1e89b627https://github.com/spinnaker/spinnaker/commit/f69d7b534d068ed74d0d3a1fbf17e2c945d36e5ehttps://github.com/spinnaker/spinnaker/security/advisories/GHSA-c8q4-9h32-2ww8