CLEANSTART-2026-HS21111: brace-expansion library generates arbitrary strings containing a common prefix and suffix

Q: What level of access does an attacker need?

The supplied CVSS vector indicates network-based exploitation with low attack complexity. It requires no prior privileges and no user interaction.

Q: What is the expected security impact?

The reported impact is limited to availability. The CVSS vector reports no confidentiality or integrity impact, but a high availability impact.

Q: Is the vulnerability relevant to remotely reachable deployments?

Yes. The attack vector is network-based, so deployments where the affected functionality is reachable over a network should be prioritized for triage.

Published Nov 11, 2026

Updated

Security vulnerability affects the argo-workflows package. The brace-expansion library generates arbitrary strings containing a common prefix and suffix.

Affected Software

2 affected componentsFixes available

cleanstart/argo-workflows<4.1.6-r1

4.1.6-r1

cleanstart/argo-workflows<4.0.15-r2

4.0.15-r2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade cleanstart/argo-workflows to a version that resolves this vulnerability.
Fixed in 4.1.6-r1
Upgrade
Upgrade cleanstart/argo-workflows to a version that resolves this vulnerability.
Fixed in 4.0.15-r2

Event History

Nov 11, 2026

Advisory Published

via OSV·12:41 AM

Data Sourced

via OSV·12:41 AM

DescriptionSeverityAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

CVE-2026-69152

Frequently Asked Questions

What level of access does an attacker need?

The supplied CVSS vector indicates network-based exploitation with low attack complexity. It requires no prior privileges and no user interaction.

What is the expected security impact?

The reported impact is limited to availability. The CVSS vector reports no confidentiality or integrity impact, but a high availability impact.

Is the vulnerability relevant to remotely reachable deployments?

Yes. The attack vector is network-based, so deployments where the affected functionality is reachable over a network should be prioritized for triage.

CLEANSTART-2026-HS21111: brace-expansion library generates arbitrary strings containing a common prefix and suffix

Affected Software

Remediation

Event History

Child vulnerabilities

Frequently Asked Questions

What level of access does an attacker need?

What is the expected security impact?

Is the vulnerability relevant to remotely reachable deployments?

Company

Resources

Contact

Frequently Asked Questions

What level of access does an attacker need?

What is the expected security impact?

Is the vulnerability relevant to remotely reachable deployments?