SpinnakerApplication · Linuxfoundation

CVE-2026-32613

CRITICAL · 9.9 CVSS v3.1 Published 2026-04-20
Fix available
A fix is available. Upgrade to 2025.3.2 / 2025.4.2 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The Echo service in Spinnaker uses Spring Expression Language (SPeL) to process expected artifacts but failed to restrict the expression evaluation context to a whitelist of trusted classes. This allowed arbitrary Java class instantiation and method invocation, providing full JVM access and enabling remote code execution, command execution, and file system access.

MitigationUpgrade Echo to versions 2026.1.0, 2026.0.1, 2025.4.2, or 2025.3.2 which contain the patch restricting SPeL to trusted classes. If immediate upgrade is not possible, disable the Echo service as a workaround.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
SpinnakerApplication
Affected:< 2025.3.2>= 2025.4.0, < 2025.4.2>= 2026.0.0, < 2026.0.1

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if Echo service is deployed
    Check for running Echo pods or processes in the Spinnaker namespace. Common commands: 'kubectl get pods -n spinnaker | grep echo' or 'docker ps | grep spin-echo'
    Affected if Echo service is not found in the environment (not affected)
  2. Determine Echo service version
    Retrieve the Echo service version from the container image tag, pod labels, or API endpoint. For Kubernetes: 'kubectl get pods -n spinnaker -l app=spin-echo -o jsonpath="{.items[*].spec.containers[*].image}"'
    Affected if Version cannot be determined or is empty
  3. Compare version against affected ranges
    Compare the installed Echo version to the affected ranges: < 2025.3.2, >= 2025.4.0 and < 2025.4.2, >= 2026.0.0 and < 2026.0.1. If version falls into any of these ranges, the environment is vulnerable.
    Affected if Installed version matches any affected range (less than 2025.3.2, between 2025.4.0-2025.4.1, or between 2026.0.0-2026.0.0)
  4. Check if expected artifacts feature is enabled
    Inspect Echo service configuration for expected artifact processing. Check Spinnaker configuration files (usually in halconfig or spin-config) for 'artifact' or 'expected-artifact' references, or query the Echo API endpoint if accessible.
    Affected if Expected artifacts feature is configured and Echo is processing artifact definitions
  5. Verify Echo service is exposed or accessible
    Confirm Echo service network accessibility. Check Kubernetes service exposure, firewall rules, or whether Echo API ports (typically 8089 or configured port) are reachable from untrusted networks.
    Affected if Echo service API is network-accessible from untrusted sources

Environment is affected if Echo service is running with a version matching the affected ranges AND the expected artifacts feature is in use, especially if Echo is network-accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 2025.3.2 / 2025.4.2 / 2026.0.1 or later
Fixed in 2025.3.22025.4.22026.0.1
Interim mitigation

Upgrade Echo to versions 2026.1.0, 2026.0.1, 2025.4.2, or 2025.3.2 which contain the patch restricting SPeL to trusted classes. If immediate upgrade is not possible, disable the Echo service as a workaround.

Recommended fix High confidence

2026.1.0 (latest fixed release, or appropriate version for your branch: 2025.3.2, 2025.4.2, or 2026.0.1)

  1. 1. Take a backup of your current Spinnaker configuration and database
  2. 2. Upgrade Spinnaker to version 2026.1.0 (or at minimum: 2025.3.2 if on 2025.3.x branch, 2025.4.2 if on 2025.4.x branch, or 2026.0.1 if on 2026.0.x branch)
  3. 3. Verify the Echo service starts successfully after upgrade
  4. 4. Test that pipeline executions with expected artifacts function correctly
  5. 5. Confirm the SPeL restriction is in place by verifying only trusted classes are accessible in artifact expression contexts
  6. 6. Monitor logs for any errors or unauthorized access attempts
Caveat Upgrading Spinnaker across major versions may introduce breaking changes in other services; review release notes for your target version

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Spinnaker Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA3.0 h
21.0 hours of engineering $3,680
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-32613 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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