CVE-2026-57476
Deloitte AI Assist for Customer unauthenticated RAG corpus read and write
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.
INFO
Published Date :
July 10, 2026, 6:16 p.m.
Last Modified :
Aug. 3, 2026, 7:16 p.m.
Remotely Exploit :
Yes !
Source :
9119a7d8-5eab-497f-8521-727c672e3725
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 9119a7d8-5eab-497f-8521-727c672e3725 | |||||
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 9119a7d8-5eab-497f-8521-727c672e3725 | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 4.0 | MEDIUM | 9119a7d8-5eab-497f-8521-727c672e3725 |
Solution
- Restrict network access to API endpoints.
- Enforce authentication for API endpoints.
- Validate RAG corpus retrieval and injection parameters.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-57476.
| URL | Resource |
|---|---|
| https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-191-01.json | Technical Description |
| https://www.cve.org/CVERecord?id=CVE-2026-57476 | |
| https://zerotolerance.me/advisories/assets/VU487875-deloitte-ascend-advisory.pdf | Third Party Advisory |
| https://zerotolerance.me/advisories/deloitte-aiassist-ascend-2026-vu487875/ | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-57476 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-57476
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-57476 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-57476 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 9119a7d8-5eab-497f-8521-727c672e3725
Aug. 03, 2026
Action Type Old Value New Value Added Reference https://www.cve.org/CVERecord?id=CVE-2026-57476 Removed Reference https://www.cve.org/CVERecord?id=CVE-2026-57474 Removed Reference Type https://www.cve.org/CVERecord?id=CVE-2026-57474 Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 21, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-57476', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-21T17:07:42.444413Z'} -
Initial Analysis by [email protected]
Jul. 16, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:deloitte:ai_assist_for_customer:*:*:*:*:*:*:*:* versions up to (excluding) 2026-03-25 Added Reference Type Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-191-01.json Types: Technical Description Added Reference Type Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government: https://www.cve.org/CVERecord?id=CVE-2026-57474 Types: Third Party Advisory Added Reference Type Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government: https://zerotolerance.me/advisories/assets/VU487875-deloitte-ascend-advisory.pdf Types: Third Party Advisory Added Reference Type Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government: https://zerotolerance.me/advisories/deloitte-aiassist-ascend-2026-vu487875/ Types: Third Party Advisory -
New CVE Received by 9119a7d8-5eab-497f-8521-727c672e3725
Jul. 10, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Deloitte', 'product': 'AI Assist for Customer', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2026-03-25', 'versionType': 'custom'}, {'status': 'unaffected', 'version': '2026-03-25'}], 'defaultStatus': 'unknown'}] Added SSVC {'id': 'CVE-2026-57476', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-23T18:31:21.217805Z'} Added Tag exclusively-hosted-service Added 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. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Added CWE CWE-306 Added Reference https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-191-01.json Added Reference https://www.cve.org/CVERecord?id=CVE-2026-57474 Added Reference https://zerotolerance.me/advisories/assets/VU487875-deloitte-ascend-advisory.pdf Added Reference https://zerotolerance.me/advisories/deloitte-aiassist-ascend-2026-vu487875/