CVE-2026-57476Network attack vector

RAG corpus read and write via unauthenticated APIs

Published Jul 10, 2026 · Updated Jul 10, 2026

Missing authentication in Deloitte AI Assist for Customer before 2026-03-25 allows remote attackers to read or write its RAG corpus. Public-facing API endpoints accepted requests without verifying an identity and used attacker-supplied parameters to retrieve from or inject content into the corpus. Exploitation requires knowledge of additional endpoint parameters; it exposes corpus data and permits persistent content injection without reported service interruption.

CVSS severity4.8
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Deloitte AI Assist for Customer before 2026-03-25 allows remote attackers to read or write its RAG corpus. Public-facing API endpoints accepted requests without verifying an identity and used attacker-supplied parameters to retrieve from or inject content into the corpus. Exploitation requires knowledge of additional endpoint parameters; it exposes corpus data and permits persistent content injection without reported service interruption.

The record

CVE
CVE-2026-57476
Published
Jul 10, 2026
Updated
Jul 10, 2026
Vendor
Deloitte
Product
AI Assist for Customer
Classifications
CWE-306, T1565.001, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026-03-25

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Deloitte · AI Assist for Customerversion=0 <2026-03-25

Published CVSS scores

4.8CISA CNACVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
6.3CISA CNACVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1565.001Stored Data Manipulation
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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