CVE-2025-9907 Overview
A sensitive data exposure vulnerability has been identified in the Red Hat Ansible Automation Platform, specifically affecting the Event-Driven Ansible (EDA) Event Stream API. This flaw allows exposure of sensitive client credentials and internal infrastructure headers via the test_headers field when an event stream is in test mode. The vulnerability enables unauthorized access to confidential information that should remain protected.
Critical Impact
This vulnerability can lead to leakage of internal infrastructure details, accidental disclosure of user or system credentials, privilege escalation if high-value tokens are exposed, and persistent sensitive data exposure to all users with read access on the event stream.
Affected Products
- Red Hat Ansible Automation Platform (Event-Driven Ansible component)
- Event-Driven Ansible (EDA) Event Stream API
Discovery Timeline
- February 27, 2026 - CVE-2025-9907 published to NVD
- February 27, 2026 - Last updated in NVD database
Technical Details for CVE-2025-9907
Vulnerability Analysis
This vulnerability is classified under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). The flaw exists within the Event-Driven Ansible (EDA) Event Stream API and manifests when event streams are configured in test mode. During this configuration, the test_headers field inadvertently exposes sensitive client credentials and internal infrastructure headers to users who have read access to the event stream.
The local attack vector requires the attacker to have prior access to the system and elevated privileges. Once exploited, the vulnerability can result in complete compromise of confidentiality and integrity of sensitive data, including authentication tokens, API keys, and infrastructure configuration details that could facilitate further attacks against the organization's automation infrastructure.
Root Cause
The root cause of this vulnerability stems from improper information handling within the Event Stream API's test mode functionality. When an event stream enters test mode, the test_headers field stores and displays sensitive header information without adequate access controls or data sanitization. This design flaw allows any user with read access to the event stream to view credentials and infrastructure details that should be restricted to administrators or the system itself.
Attack Vector
The attack requires local access to the Ansible Automation Platform with sufficient privileges to access event streams. An attacker with read permissions on an event stream can observe the test_headers field when the stream is in test mode.
The exploitation process involves:
- Gaining authenticated access to the Ansible Automation Platform with event stream read permissions
- Identifying event streams that are configured in test mode
- Accessing the test_headers field to extract sensitive information including credentials, API tokens, and internal infrastructure headers
- Using the exposed credentials for privilege escalation or lateral movement within the infrastructure
Detection Methods for CVE-2025-9907
Indicators of Compromise
- Unusual access patterns to event streams configured in test mode
- Unexpected queries to the test_headers field from non-administrative users
- Authentication attempts using credentials that match patterns found in event stream headers
- Anomalous API calls to the EDA Event Stream API from unfamiliar IP addresses or user accounts
Detection Strategies
- Monitor access logs for the Event-Driven Ansible API, specifically tracking requests to event stream endpoints
- Implement alerting for bulk queries or repeated access to test_headers fields
- Audit user access to event streams and flag any attempts to access test mode configurations by unauthorized users
- Review authentication logs for signs of credential reuse that may indicate extracted tokens being exploited
Monitoring Recommendations
- Enable verbose logging on the Ansible Automation Platform to capture all API interactions with event streams
- Configure SIEM rules to detect access patterns indicative of credential harvesting from event stream endpoints
- Implement regular audits of event stream configurations to identify streams left in test mode unnecessarily
- Deploy network monitoring to detect lateral movement attempts using credentials potentially exposed through this vulnerability
How to Mitigate CVE-2025-9907
Immediate Actions Required
- Disable test mode on all production event streams immediately to prevent credential exposure
- Review and revoke any credentials that may have been exposed through the test_headers field
- Audit access logs to determine if sensitive information has already been accessed by unauthorized users
- Restrict read access to event streams to only essential personnel while patches are applied
Patch Information
Red Hat has released security updates to address this vulnerability. Organizations should apply the appropriate patches based on their Ansible Automation Platform version:
- Red Hat Security Errata RHSA-2025:19201
- Red Hat Security Errata RHSA-2025:19221
- Red Hat Security Errata RHSA-2025:23069
- Red Hat Security Errata RHSA-2025:23131
For additional details, refer to the Red Hat CVE Report for CVE-2025-9907 and Red Hat Bugzilla Report #2392834.
Workarounds
- Remove event streams from test mode when not actively being used for testing purposes
- Implement strict role-based access controls to limit who can view event stream configurations
- Sanitize or rotate any credentials that have been used in event stream headers before they could be exposed
- Consider network segmentation to isolate the Ansible Automation Platform from less-trusted network zones
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
