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TI-2021-19638 Aliases CVE-2021-43832

Improper Access Control in spinnaker

Priority MEDIUM 54CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

Spinnaker is an open source, multi-cloud continuous delivery platform. Spinnaker has improper permissions allowing pipeline creation & execution. This lets an arbitrary user with access to the gate endpoint to create a pipeline and execute it without authentication. If users haven't setup Role-based access control (RBAC) with-in spinnaker, this enables remote execution and access to deploy almost any resources on any account. Patches are available on the latest releases of the supported branches and users are advised to upgrade as soon as possible. Users unable to upgrade should enable RBAC on ALL accounts and applications. This mitigates the ability of a pipeline to affect any accounts. Block application access unless permission are enabled. Users should make sure ALL application creation is restricted via appropriate wildcards.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02655 85th percentileScored 2026-11-07
Fix Fixed spinnaker (spinnaker): 1.26.7, 1.25.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
spinnakerspinnaker1.26.0 to before 1.26.7; before 1.25.81.26.7, 1.25.8Patch availableCNA
  • spinnaker Vendorspinnaker Affected 1.26.0 to before 1.26.7; before 1.25.8 Fixed in 1.26.7, 1.25.8 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:linuxfoundation:spinnaker:*:*:*:*:*:*:*:*before 1.25.8; 1.26.0 to before 1.26.7Vulnerablebackstage
  • cpe:2.3:a:linuxfoundation:spinnaker:*:*:*:*:*:*:*:* Versions before 1.25.8; 1.26.0 to before 1.26.7 Vulnerable ·backstage

Remediation

  • Fix · CNA spinnaker (spinnaker) Fixed in 1.26.7, 1.25.8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-43832

References

Advisory 1

  • TI-2021-16529 Path Traversal in spinnaker CVSS 3.1HIGH 7.1
  • TI-2026-25122 Spinnaker vulnerable to RCE via expression parsing due to unrestricted context handling CVSS 3.1CRITICAL 10.0
  • TI-2026-25113 Improper input validation in spinnaker CVSS 3.1CRITICAL 10.0
  • TI-2026-32679 Spinnaker: Non-safe yaml deserialization allowing RCE when using specific types CVSS 3.1HIGH 8.8
  • TI-2026-39859 Spinnaker: Improper yaml processing on kustomize bake operations CVSS 3.1HIGH 7.5
  • TI-2020-07437 Server-side request forgery in Netflix Orca Spinnaker CVSS 3.1HIGH 7.5
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences