CVE-2021-43832Network attack vector

Unauthenticated pipeline execution via wildcard permission match

Published Jan 4, 2022 · Updated Apr 23, 2025

Missing authentication in Spinnaker before 1.25.8 and 1.26.0 through 1.26.6 allows remote attackers to create and execute pipelines. Gate's favorite-icon permission rule performs an incorrect wildcard match, leaving pipeline creation and execution API requests authorized without credentials. Exposure of the Gate endpoint is sufficient when RBAC is not configured across every account and application, enabling deployment access and command execution against connected resources.

CVSS severity10.0
Critical
EPSS probability2.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Spinnaker before 1.25.8 and 1.26.0 through 1.26.6 allows remote attackers to create and execute pipelines. Gate's favorite-icon permission rule performs an incorrect wildcard match, leaving pipeline creation and execution API requests authorized without credentials. Exposure of the Gate endpoint is sufficient when RBAC is not configured across every account and application, enabling deployment access and command execution against connected resources.

The record

CVE
CVE-2021-43832
Published
Jan 4, 2022
Updated
Apr 23, 2025
Vendor
Spinnaker
Product
Spinnaker
Classifications
CWE-284, CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 4, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.25.8
  2. Affected versionversion=>= 1.26.0, < 1.26.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Spinnaker · Spinnakerversion=< 1.25.8; version=>= 1.26.0, < 1.26.7

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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