Description
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
References5
- github.com/spinnaker/spinnaker/security/advisories/GHSA-69rw-45… MitigationVendor Advisory
- github.com/spinnaker/spinnaker/releases/tag/spinnaker-release-2… ProductRelease Notes
- github.com/spinnaker/spinnaker/releases/tag/spinnaker-release-2… ProductRelease Notes
- github.com/spinnaker/spinnaker/releases/tag/spinnaker-release-2… ProductRelease Notes
- zeropath.com/blog/spinnaker-rce-production-compromise
Metrics
- CVSS 3.1
-
9.9
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 47 · as of 13 November 2026
- CWE
- CWE-94
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.