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CVE-2026-67926 – Unauthenticated SSRF via AI Chat Module – JeecgBoot v3.9.2

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Summary

CVE-2026-67926 is a critical code injection vulnerability (CWE-94) affecting JeecgBoot v3.9.2. The flaw resides in the files parameter of the AI Chat Module and allows a remote, unauthenticated attacker to achieve arbitrary code execution. The vulnerability carries a CVSS v3.1 base score of 9.8 (Critical).

Technical details

  • Root cause: improper validation/handling of the files parameter submitted to the JeecgBoot AI Chat Module (CWE-94, Improper Control of Generation of Code).
  • The vulnerable functionality is exposed via the AI chat/RAG feature, which accepts a files array in request input.
  • Attack vector: network, no authentication and no user interaction required (AV:N/AC:L/PR:N/UI:N).
  • Impact: full compromise of confidentiality, integrity, and availability (C:H/I:H/A:H), consistent with arbitrary code execution on the host.

Affected software

  • JeecgBoot v3.9.2

Severity

  • CVSS v3.1 Base Score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Upgrade JeecgBoot to a version beyond 3.9.2 that addresses this issue; consult the vendor’s GitHub repository and issue tracker for the fix corresponding to this report and apply it as soon as it is available.
  • If no patch can be applied immediately: restrict or disable the AI Chat Module/related endpoint from external network access, place it behind authentication and strict network egress controls, and monitor for anomalous requests containing unexpected values in the files parameter.

References

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