CVE-2026-9373Network attack vector

Unauthenticated integrity modification via OpenAPI call

Published May 24, 2026 · Updated May 24, 2026

Improper authentication in JEECG JeecgBoot 3.9.1 allows remote attackers to alter data through the /openapi/call/ endpoint. The published record does not disclose the request field, code path, or failed authentication operation within the OpenAPI call handler. Exploitation requires no authentication but has high-complexity conditions; no confidentiality loss or service interruption is reported.

CVSS severity6.3
Medium
EPSS probability0.36%
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 JEECG JeecgBoot 3.9.1 allows remote attackers to alter data through the /openapi/call/ endpoint. The published record does not disclose the request field, code path, or failed authentication operation within the OpenAPI call handler. Exploitation requires no authentication but has high-complexity conditions; no confidentiality loss or service interruption is reported.

The record

CVE
CVE-2026-9373
Published
May 24, 2026
Updated
May 24, 2026
Vendor
Beijing Guoju Information Technology Co., Ltd.
Product
JeecgBoot
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 24, 2026CVE publishedPublication date reported by the CVE source.
  2. May 24, 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=3.9.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

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

Published CVSS scores

6.3NVDCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
3.7NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
2.6NVDAV:N/AC:H/Au:N/C:N/I:P/A: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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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