CVE-2026-108678 jeecgboot CVE debrief

Who should care

Defenders responsible for systems using JeecgBoot, especially those with role-based access control, should assess exposure and prioritize verification and remediation efforts. They should also review compensating controls for exposed systems and monitor for suspicious activity related to role enumeration.

Why it matters

CVE-2026-108678 is a medium-severity vulnerability in JeecgBoot that allows authenticated users to read any user's role codes. Defenders should prioritize verifying exposure, restricting access to the vulnerable endpoint, and monitoring for suspicious activity.

• Role enumeration and potential privilege escalation
• Increased risk of targeted attacks on systems with exposed JeecgBoot installations

Technical summary

The queryUserRoles handler of SystemApiController in JeecgBoot through 3.9.5 does not properly authorize requests, allowing authenticated users to read role codes for any user by sending a GET request to /sys/api/queryUserRoles with an arbitrary username. This vulnerability has a CVSS score of 5.3 and a medium severity. Defenders should prioritize verifying exposure of JeecgBoot installations to this vulnerability, especially in systems where role-based access control is critical, and restrict access to the vulnerable endpoint.

Defensive priority

Defenders should prioritize verifying exposure of JeecgBoot installations to this vulnerability, especially in systems where role-based access control is critical.

Recommended defensive actions

• Verify JeecgBoot installations for exposure to this vulnerability
• Restrict access to the /sys/api/queryUserRoles endpoint
• Monitor for suspicious activity related to role enumeration
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability. However, the exact scope of affected versions and systems requires further verification from official sources. Defenders should verify JeecgBoot installations for exposure, review official advisories, and monitor for suspicious activity related to role enumeration. The vulnerability allows authenticated users to read role codes for any user, which can lead to role enumeration and potential privilege escalation.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.