CVE-2026-34164
Published:April 16, 2026
Updated:May 18, 2026
Valtimo is an open-source business process automation platform. In versions 13.0.0 through 13.21.0, the InboxHandlingService logs the full content of every incoming inbox message at INFO level. Inbox messages can contain highly sensitive information including personal data (PII), citizen identifiers (BSN), and case details. This data is exposed to anyone with access to application logs or any Valtimo user with the admin role through the Admin UI logging module. This issue has been fixed in version 13.22.0. If developers are unable to upgrade immediately, they can restrict access to application logs and adjust the log level for com.ritense.inbox to WARN or higher in their application configuration as a workaround.
Affected Packages
https://github.com/valtimo-platform/valtimo.git (GITHUB):
Affected version(s) >=13.0.0 <13.22.0Fix Suggestion:
Update to version 13.22.0com.ritense.valtimo:inbox (JAVA):
Affected version(s) >=13.0.0.RELEASE <13.22.0Fix Suggestion:
Update to version 13.22.0com.ritense.valtimo:inbox (JAVA):
Affected version(s) >=13.0.0.RELEASE <13.22.0.RELEASEFix Suggestion:
Update to version 13.22.0.RELEASERelated Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.9
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Insertion of Sensitive Information into Log File
EPSS
Base Score:
0.04