CLEANSTART-2026-TE39981: fast-uri normalize() decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization

Q: What conditions are required to exploit this issue?

The vulnerability is network-reachable, requires no attacker privileges, and requires no user interaction. Exploitation depends on argo-workflows processing a URI whose host component contains percent-encoded authority delimiters.

Q: What security impact can exploitation have?

The reported impact is integrity compromise, with no reported confidentiality or availability impact. Affected URI normalization and serialization may reinterpret encoded delimiters as authority syntax, which can undermine decisions based on the resulting URI.

Q: Are affected versions or fixed versions identified?

No affected version range or fixed version is provided in the available data. Use the referenced advisory records to determine whether the deployed cleanstart/argo-workflows version is affected.

Published Nov 11, 2026

Updated

Security vulnerability affects the argo-workflows package. fast-uri normalize() decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization.

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·12:40 AM

Data Sourced

via OSV·12:40 AM

DescriptionSeverityAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

CVE-2026-6322

Frequently Asked Questions

What conditions are required to exploit this issue?

The vulnerability is network-reachable, requires no attacker privileges, and requires no user interaction. Exploitation depends on argo-workflows processing a URI whose host component contains percent-encoded authority delimiters.

What security impact can exploitation have?

The reported impact is integrity compromise, with no reported confidentiality or availability impact. Affected URI normalization and serialization may reinterpret encoded delimiters as authority syntax, which can undermine decisions based on the resulting URI.

Are affected versions or fixed versions identified?

No affected version range or fixed version is provided in the available data. Use the referenced advisory records to determine whether the deployed cleanstart/argo-workflows version is affected.

CLEANSTART-2026-TE39981: fast-uri normalize() decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization

Affected Software

Remediation

Event History

Child vulnerabilities

Frequently Asked Questions

What conditions are required to exploit this issue?

What security impact can exploitation have?

Are affected versions or fixed versions identified?

Company

Resources

Contact

Frequently Asked Questions

What conditions are required to exploit this issue?

What security impact can exploitation have?

Are affected versions or fixed versions identified?