CVE-2026-31926 Overview
CVE-2026-31926 is an Information Exposure vulnerability affecting electric vehicle (EV) charging station infrastructure. The vulnerability allows charging station authentication identifiers to be publicly accessible via web-based mapping platforms, creating an opportunity for unauthorized access and potential misuse of charging infrastructure.
This vulnerability falls under CWE-522 (Insufficiently Protected Credentials), indicating that sensitive authentication data is being exposed without adequate protection mechanisms. The network-accessible nature of this vulnerability means that attackers can remotely harvest authentication identifiers without requiring any special privileges or user interaction.
Critical Impact
Publicly exposed charging station authentication identifiers could enable unauthorized charging sessions, billing fraud, infrastructure manipulation, and potential disruption of EV charging networks.
Affected Products
- EV Charging Station Infrastructure (specific vendor details not disclosed in advisory)
- Web-based Mapping Platform Integrations
- Charging Station Management Systems
Discovery Timeline
- 2026-03-20 - CVE CVE-2026-31926 published to NVD
- 2026-03-23 - Last updated in NVD database
Technical Details for CVE-2026-31926
Vulnerability Analysis
This Information Exposure vulnerability stems from improper handling of authentication credentials in charging station deployments. The root issue involves authentication identifiers being transmitted or stored in a manner that makes them accessible through publicly available web-based mapping platforms.
EV charging infrastructure typically relies on authentication tokens, RFID identifiers, or similar credentials to authorize charging sessions and link them to user accounts for billing purposes. When these identifiers are exposed through mapping services, it creates a significant security gap that undermines the entire authentication framework.
The vulnerability requires no authentication to exploit, meaning any remote attacker with network access can potentially harvest these exposed credentials. This accessibility significantly increases the attack surface for charging infrastructure operators.
Root Cause
The vulnerability is classified under CWE-522 (Insufficiently Protected Credentials). This indicates that the charging station systems fail to adequately protect authentication identifiers during transmission, storage, or integration with third-party mapping platforms. The credentials may be exposed through API responses, embedded metadata, or improperly secured data feeds that populate mapping services.
Attack Vector
The attack vector for CVE-2026-31926 is network-based, allowing remote exploitation without requiring local access to the charging infrastructure. An attacker can potentially:
- Query web-based mapping platforms to enumerate charging station locations
- Extract authentication identifiers associated with exposed stations
- Use harvested credentials to initiate unauthorized charging sessions
- Potentially clone identifiers for fraudulent billing or service disruption
The exploitation does not require authentication or user interaction, making it particularly accessible to attackers. The lack of attack complexity means that even unsophisticated threat actors could potentially leverage this vulnerability.
Detection Methods for CVE-2026-31926
Indicators of Compromise
- Unusual patterns of authentication identifier queries against mapping platform APIs
- Unauthorized charging sessions appearing in billing systems without corresponding user activity
- Multiple charging sessions initiated from geographically disparate locations using the same authentication identifier
- Anomalous API access patterns to charging station management systems
Detection Strategies
- Monitor mapping platform integrations for unexpected data exposure or credential leakage
- Implement logging for all authentication identifier access and usage patterns
- Deploy anomaly detection for charging session initiation to identify potential credential misuse
- Conduct regular audits of publicly accessible data through mapping service integrations
Monitoring Recommendations
- Enable detailed logging on charging station management platforms and authentication systems
- Monitor for bulk queries or enumeration attempts against charging station APIs
- Track authentication identifier usage across the infrastructure to detect cloning or unauthorized use
- Review third-party mapping platform integrations for potential data exposure points
How to Mitigate CVE-2026-31926
Immediate Actions Required
- Audit all integrations with web-based mapping platforms to identify exposed authentication data
- Remove or obfuscate authentication identifiers from public-facing mapping services
- Review API configurations to ensure sensitive credentials are not transmitted in responses
- Implement access controls on charging station data feeds to third-party services
Patch Information
Refer to the CISA ICS Advisory ICSA-26-078-08 for vendor-specific remediation guidance. Additional technical details are available in the GitHub CSAF File.
Organizations should coordinate with their charging infrastructure vendors to obtain applicable security updates and configuration guidance.
Workarounds
- Disable or restrict public API access to charging station authentication data until patches are applied
- Implement network segmentation to isolate charging infrastructure from public mapping service integrations
- Deploy additional authentication layers such as PIN requirements or time-limited tokens to reduce exposure impact
- Consider rotating authentication identifiers for affected charging stations to invalidate potentially compromised credentials
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
