CLEANSTART-2026-JJ53461: If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources

Q: What level of access is required to trigger this issue?

The CVSS vector indicates it is network-reachable, requires low attack complexity, and does not require privileges or user interaction. Exploitation involves a TLS peer sending multiple post-handshake key update messages in a single record.

Q: Does this issue affect confidentiality or integrity?

The provided CVSS vector rates confidentiality and integrity impact as none. Its impact is on availability, rated high, because the TLS connection can deadlock and consume resources.

Published Nov 11, 2026

Updated

Security vulnerability affects the argo-workflows package. If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources.

Affected Software

1 affected componentFixes available

cleanstart/argo-workflows<4.1.6-r1

4.1.6-r1

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

Event History

Nov 11, 2026

Advisory Published

via OSV·12:38 AM

Data Sourced

via OSV·12:38 AM

DescriptionSeverityAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

CVE-2026-32283

Frequently Asked Questions

What level of access is required to trigger this issue?

The CVSS vector indicates it is network-reachable, requires low attack complexity, and does not require privileges or user interaction. Exploitation involves a TLS peer sending multiple post-handshake key update messages in a single record.

Does this issue affect confidentiality or integrity?

The provided CVSS vector rates confidentiality and integrity impact as none. Its impact is on availability, rated high, because the TLS connection can deadlock and consume resources.

CLEANSTART-2026-JJ53461: If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources

Affected Software

Remediation

Event History

Child vulnerabilities

Frequently Asked Questions

What level of access is required to trigger this issue?

Does this issue affect confidentiality or integrity?

Company

Resources

Contact

Frequently Asked Questions

What level of access is required to trigger this issue?

Does this issue affect confidentiality or integrity?