CVE-2026-32613: Linuxfoundation Spinnaker

Critical severity, CVSS 9.9. EPSS: 0.7% chance of exploitation in the next 30 days.

Spinnaker is an open source, multi-cloud continuous delivery platform. Echo like some other services, uses SPeL (Spring Expression Language) to process information - specifically around expected artifacts. In versions prior to 2026.1.0, 2026.0.1, 2025.4.2, and 2025.3.2, unlike orca, it was NOT restricting that context to a set of trusted classes, but allowing FULL JVM access. This enabled a user to use arbitrary java classes which allow deep access to the system. This enabled the ability to invoke commands, access files, etc. Versions 2026.1.0, 2026.0.1, 2025.4.2, and 2025.3.2 contain a patch. As a workaround, disable echo entirely.

Affected products

• Linuxfoundation Spinnaker: before 2025.3.2 (fixed in 2025.3.2); from 2025.4.0, before 2025.4.2 (fixed in 2025.4.2); from 2026.0.0, before 2026.0.1 (fixed in 2026.0.1)

Published 2026-04-20. Last modified 2026-06-17.