CLEANSTART-2026-PP64287: In Apache CXF, STSTokenValidator checks whether a SAML assertion is signed by a trusted certificate before deciding to send it to the STS
Published Nov 13, 2026
·Updated
Security vulnerability affects the wso2am package. In Apache CXF, STSTokenValidator checks whether a SAML assertion is signed by a trusted certificate before deciding to send it to the STS.
Affected Software
1 affected componentFixes available
cleanstart/wso2am<4.7.0-r4
4.7.0-r4
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
cleanstart/wso2amto a version that resolves this vulnerability.Fixed in 4.7.0-r4
Event History
Nov 13, 2026
Advisory Published
via OSV·12:36 AM
Data Sourced
via OSV·12:36 AM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Does exploiting this issue require an authenticated account or user interaction?
No. The supplied CVSS vector indicates no privileges are required and no user interaction is needed.
2
How difficult is exploitation according to the available assessment?
The issue is rated as having low attack complexity and is remotely exploitable over the network.
3
What is the expected security impact?
The provided CVSS vector indicates a high availability impact, with no indicated confidentiality or integrity impact. Scope is unchanged.