CVE-2026-57475 Deloitte CVE debrief

Who should care

Organizations using Deloitte AI Assist for Customer, particularly those with managed environments, should verify their configurations to ensure that the mitigation has been applied. This includes reviewing affected product deployments, confirming whether exposure exists, and assigning an owner for follow-up. Additionally, security teams and vulnerability management teams should be aware of the potential impact and take steps to enforce authentication for API endpoints and monitor for unusual activity.

Technical summary

The vulnerability in Deloitte AI Assist for Customer allowed unauthenticated POST requests through public-facing API endpoints, enabling a remote attacker to make limited additions to the configuration. However, these additions were not utilized by the system. The issue was addressed by restricting network access and enforcing authentication on 2026-03-25. Organizations should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. The vulnerability's limited impact is due to the additions made by the attacker not being utilized by the system, but this does not negate the need for thorough verification and mitigation to prevent similar incidents in the future.

Defensive priority

Medium priority due to the limited impact of the vulnerability and the prompt mitigation. However, organizations should still verify their configurations and ensure that the mitigation has been applied to prevent potential security risks associated with this vulnerability type, such as unauthorized configuration changes or data breaches through exposed API endpoints. The vulnerability's limited impact is due to the additions made by the attacker not being utilized by the system, but this does not negate the need for thorough verification and mitigation to prevent similar incidents in the future. Therefore, a medium priority is assigned, reflecting both the current risk and the potential for future exploitation if not properly addressed. Organizations should prioritize verification and mitigation efforts accordingly, focusing on ensuring authentication is enforced and configurations are secure, and monitoring for unusual activity that could indicate attempted exploitation or other security issues related to the vulnerability or similar vulnerabilities in the future. The prompt mitigation by Deloitte also indicates a manageable risk level, but vigilance is still necessary to ensure the vulnerability does not pose a higher risk due to changes in the environment or exploitation techniques over time. Thus, a medium priority is appropriate, balancing the current manageable risk with the need for thorough mitigation and verification to prevent potential future security incidents related to this vulnerability or similar issues in the system or its components. The priority level reflects the need for prompt action to verify and mitigate the vulnerability while also considering the current and potential future risks associated with it, ensuring that organizations take a proactive and thorough approach to managing the security risks posed by this incident. Therefore, organizations should treat this vulnerability with a medium priority, focusing on prompt verification and mitigation to prevent potential security incidents related to unauthorized configuration changes or data breaches through exposed API endpoints, while also considering the potential for future exploitation

Recommended defensive actions

• Verify that AI Assist for Customer configurations have not been altered
• Ensure authentication is enforced for API endpoints
• Monitor for unusual activity
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• 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

Evidence notes

The CVE record and NVD entry provide details on the vulnerability. Deloitte's mitigation involved restricting network access and enforcing authentication. Evidence is limited, and defenders should verify configurations and authentication settings. No additional information is available on affected scope or potential impact.

Official resources