Plateforme
java
Composant
valtimo-platform
Corrigé dans
13.0.1
13.22.0.RELEASE
CVE-2026-34164 describes an information disclosure vulnerability in Valtimo, a customer service platform. The InboxHandlingService logs the full content of incoming inbox messages at the INFO level, inadvertently exposing sensitive data. This vulnerability impacts Valtimo versions 13.0.0 up to, but not including, 13.22.0. A fix is available in version 13.22.0.
The primary impact of CVE-2026-34164 is the exposure of sensitive information contained within inbox messages. These messages act as wrappers for outbox message data and can include Personally Identifiable Information (PII), citizen identifiers (BSN), and detailed case information. Attackers with access to Valtimo application logs (either through stdout/log files or the Admin UI with admin privileges) can potentially extract this sensitive data. The blast radius extends to any user with access to these logs, creating a significant risk of data breaches and regulatory non-compliance. This vulnerability resembles scenarios where sensitive data is inadvertently logged, leading to unauthorized access and potential misuse.
CVE-2026-34164 was publicly disclosed on 2026-04-16. There is no indication of active exploitation or a KEV listing at the time of writing. Public proof-of-concept code is not currently available. The vulnerability's reliance on log access suggests exploitation would likely require insider access or compromised credentials.
Organizations using Valtimo for customer service, particularly those handling sensitive data like PII or citizen identifiers, are at risk. Shared hosting environments where Valtimo instances share log files are especially vulnerable. Valtimo deployments with overly permissive access controls to application logs or the Admin UI also face increased risk.
• linux / server:
journalctl -u valtimo | grep "Received message:"• generic web:
curl -s 'https://<valtimo_server>/logs' | grep "Received message:"disclosure
Statut de l'Exploit
EPSS
0.04% (percentile 12%)
CISA SSVC
Vecteur CVSS
The primary mitigation for CVE-2026-34164 is to upgrade Valtimo to version 13.22.0 or later, which includes the fix for this information disclosure issue. If an immediate upgrade is not feasible, consider implementing temporary workarounds to restrict access to application logs. This could involve tightening permissions on log files, limiting access to the Admin UI, and implementing stricter auditing controls. Review and sanitize the data being logged by the InboxHandlingService to prevent sensitive information from being included in log messages. After upgrading, verify the fix by sending a test inbox message containing sample PII and confirming that it is no longer logged at the INFO level.
Actualice a la versión 13.22.0 o superior para evitar la exposición de datos confidenciales. Si no puede actualizar inmediatamente, restrinja el acceso a los registros de la aplicación o ajuste el nivel de registro para com.ritense.inbox a WARN o superior en la configuración de la aplicación.
Analyses de vulnérabilités et alertes critiques directement dans votre boîte mail.
CVE-2026-34164 is a medium-severity vulnerability in Valtimo where sensitive data within inbox messages is logged, potentially exposing PII and other confidential information to those with log access.
You are affected if you are using Valtimo versions 13.0.0 through 13.21.9. Upgrade to version 13.22.0 or later to resolve the issue.
The recommended fix is to upgrade Valtimo to version 13.22.0 or later. As a temporary workaround, restrict access to application logs and the Admin UI.
There is currently no evidence of active exploitation of CVE-2026-34164, but the potential for data exposure remains a concern.
Refer to the official Valtimo security advisory for detailed information and updates regarding CVE-2026-34164: [https://valtimo.com/security/advisories](https://valtimo.com/security/advisories)
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