CVE-2026-57476 Deloitte CVE debrief

Who should care

Organizations using Deloitte AI Assist for Customer should review their configurations to ensure all API endpoints are properly secured and authenticated. This includes verifying that authentication and authorization are enforced, monitoring for suspicious activity, and ensuring that compensating controls such as asset inventory and monitoring are in place. Additionally, organizations should confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Technical summary

The vulnerability in Deloitte AI Assist for Customer exposed unauthenticated API endpoints, allowing potential attackers to read from or inject content into the retrieval-augmented generation (RAG) corpus if they had knowledge of additional parameters. The issue was mitigated on 2026-03-25 by restricting network access and enforcing authentication for these endpoints. This vulnerability has a CVSS score of 6.3 and is considered Medium severity. The exposed endpoints could allow attackers to access sensitive information or inject malicious content, potentially leading to data breaches or other security incidents. Organizations should prioritize securing API endpoints and enforcing authentication and authorization to prevent similar vulnerabilities in the future.

Defensive priority

Medium priority due to the CVSS score of 6.3 and the potential for data exposure or injection. Organizations should prioritize securing API endpoints and enforcing authentication and authorization to prevent similar vulnerabilities in the future. Compensating controls, such as monitoring and asset inventory, should also be reviewed to ensure adequate protection. Review and secure API endpoints, enforce authentication and authorization, and monitor for suspicious activity. Update and patch AI Assist for Customer according to vendor guidance. Track exceptions, retest remediated assets, and close the item only after evidence is documented. Consider rollback/change windows for remediation if necessary. Source tracking and exposure review are also recommended to ensure comprehensive mitigation. Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Check relevant monitoring, detection, and logs for exposed assets that need extra review. Review compensating controls for exposed systems while remediation is scheduled and verified. Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. Review and secure API endpoints, enforce authentication and authorization, and monitor for suspicious activity. Update and patch AI Assist for Customer according to vendor guidance. Track exceptions, retest remediated assets, and close the item only after evidence is documented. Consider rollback/change windows for remediation if necessary. Source tracking and exposure review are also recommended to ensure comprehensive mitigation. Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Check relevant monitoring, detection, and logs for exposed assets that need extra review. Review compensating controls for exposed systems while remediation is scheduled and verified. Review the supplied official advisory or CVE record to 7

Recommended defensive actions

• Review and secure API endpoints
• Enforce authentication and authorization
• Monitor for suspicious activity
• Update and patch AI Assist for Customer
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Review compensating controls for exposed systems while remediation is scheduled and verified

Evidence notes

The CVE record was published on 2026-07-10T18:16:24.947Z and has not been modified since then. The NVD entry is currently Undergoing Analysis. Deloitte AI Assist for Customer had exposed unauthenticated API endpoints, allowing potential attackers to read from or inject content into the RAG corpus if they had knowledge of additional parameters. The issue was mitigated on 2026-03-25 by restricting network access and enforcing authentication for these endpoints. Evidence is limited, and defenders should verify affected scope and vendor guidance.

Official resources