CVE-2026-57476: CWE-306 Missing Authentication for Critical Function in Deloitte AI Assist for Customer
Deloitte AI Assist for Customer exposed unauthenticated API endpoints that allowed an attacker with knowledge of additional parameters to read from or inject content into the retrieval-augmented generation (RAG) corpus. On 2026-03-25, AI Assist for Customer restricted network access and enforced authentication for the previously exposed endpoints.
AI Analysis
Technical Summary
Deloitte AI Assist for Customer had unauthenticated API endpoints that permitted attackers with knowledge of certain parameters to read from or inject data into the retrieval-augmented generation (RAG) corpus. This constitutes a missing authentication for a critical function (CWE-306). On 2026-03-25, Deloitte mitigated the issue by restricting network access and enforcing authentication on these endpoints. No further patch or remediation details are provided.
Potential Impact
The vulnerability allows unauthorized actors to access and modify the RAG corpus data, potentially leading to information disclosure and data integrity issues. The CVSS score of 4.8 reflects a medium impact with low confidentiality and integrity impacts and no availability impact. There are no known exploits in the wild.
Mitigation Recommendations
Deloitte has already restricted network access and enforced authentication on the affected API endpoints as of 2026-03-25. No additional remediation guidance is provided. Patch status is not explicitly confirmed; check Deloitte's vendor advisory for current remediation details.
CVE-2026-57476: CWE-306 Missing Authentication for Critical Function in Deloitte AI Assist for Customer
Description
Deloitte AI Assist for Customer exposed unauthenticated API endpoints that allowed an attacker with knowledge of additional parameters to read from or inject content into the retrieval-augmented generation (RAG) corpus. On 2026-03-25, AI Assist for Customer restricted network access and enforced authentication for the previously exposed endpoints.
CVSS v3.1
Score 4.8medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Deloitte AI Assist for Customer had unauthenticated API endpoints that permitted attackers with knowledge of certain parameters to read from or inject data into the retrieval-augmented generation (RAG) corpus. This constitutes a missing authentication for a critical function (CWE-306). On 2026-03-25, Deloitte mitigated the issue by restricting network access and enforcing authentication on these endpoints. No further patch or remediation details are provided.
Potential Impact
The vulnerability allows unauthorized actors to access and modify the RAG corpus data, potentially leading to information disclosure and data integrity issues. The CVSS score of 4.8 reflects a medium impact with low confidentiality and integrity impacts and no availability impact. There are no known exploits in the wild.
Mitigation Recommendations
Deloitte has already restricted network access and enforced authentication on the affected API endpoints as of 2026-03-25. No additional remediation guidance is provided. Patch status is not explicitly confirmed; check Deloitte's vendor advisory for current remediation details.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisa-cg
- Date Reserved
- 2026-06-24T13:52:15.600Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5133df68715ace43f431c0
Added to database: 07/10/2026, 18:03:11 UTC
Last enriched: 08/03/2026, 19:30:49 UTC
Last updated: 08/23/2026, 22:52:12 UTC
Views: 65
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