CVE-2026-5616Public exploitNetwork attack vector

System takeover via unauthenticated AI tools

Published Apr 6, 2026 · Updated Apr 6, 2026

Improper authentication in JeecgBoot 3.9.0 and 3.9.1 allows remote attackers to invoke sensitive AI chat tools without credentials. AiragChatServiceImpl.sendWithDefault loads JeecgBizToolsProvider default tools for anonymous requests to /airag/chat/send without checking the current user. Exploitation requires a configured LLM API key and allows account-data access, user creation, role assignment, and system takeover.

CVSS severity6.9
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in JeecgBoot 3.9.0 and 3.9.1 allows remote attackers to invoke sensitive AI chat tools without credentials. AiragChatServiceImpl.sendWithDefault loads JeecgBizToolsProvider default tools for anonymous requests to /airag/chat/send without checking the current user. Exploitation requires a configured LLM API key and allows account-data access, user creation, role assignment, and system takeover.

The record

CVE
CVE-2026-5616
Published
Apr 6, 2026
Updated
Apr 6, 2026
Vendor
Beijing Guoju Information Technology Co., Ltd.
Product
JeecgBoot
Classifications
CWE-306, CWE-287, T1087, T1136, T1098
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 6, 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=3.9.0
  2. Affected versionversion=3.9.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Beijing Guoju Information Technology Co., Ltd. · JeecgBootversion=3.9.0; version=3.9.1

Published CVSS scores

7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-287Improper Authentication
T1087Account Discovery
T1136Create Account
T1098Account Manipulation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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