CVE-2026-9580: JeecgBoot selectDepart LoginController.selectDepart access control
A vulnerability was determined in JeecgBoot up to 3.9.1. The affected element is the function LoginController.selectDepart of the file /sys/selectDepart. This manipulation causes improper access controls. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. Upgrading to version 3.9.2 is sufficient to fix this issue. It is suggested to upgrade the affected component.
JeecgBoot versions up to 3.9.1 have an improper access control flaw in the department-selection login path. A remote attacker may be able to bypass intended authorization checks. The source bundle says exploit details are public, but it does not show confirmed active exploitation or KEV listing.
Executive priority
Prioritize remediation this patch cycle, sooner for internet-facing systems. The issue is high severity, remotely reachable, unauthenticated by CVSS, and publicly disclosed. There is no provided evidence of active exploitation, so it is urgent but not a confirmed incident by itself.
Technical view
CVE-2026-9580 affects LoginController.selectDepart at /sys/selectDepart. It is mapped to CWE-266 and CWE-284 with CVSS 7.5, network attack vector, low complexity, and no authentication required. The stated remediation is upgrade to JeecgBoot 3.9.2.
Likely exposure
Organizations running internet-accessible JeecgBoot 3.9.1 or earlier are the clearest exposure group. Internal deployments still matter if untrusted users or compromised hosts can reach the application. The bundle has a version-list inconsistency mentioning 3.9.2, but its description and patch reference identify 3.9.2 as fixed.
Exploitation context
The source bundle states the exploit has been publicly disclosed and may be used. It does not provide evidence of active exploitation, and KEV is false. Treat this as elevated near-term risk because the vulnerable endpoint and fixed version are public.
Researcher notes
Key evidence is from VulDB, CVE metadata, GitHub issue tracking, and the v3.9.2 release reference. Do not rely on the affected array alone because it lists 3.9.2 while the narrative says 3.9.2 fixes the issue. Validate against vendor release content.
Mitigation direction
Upgrade affected JeecgBoot deployments to version 3.9.2.
Restrict external access to JeecgBoot administrative and login-related routes.
Review vendor issue and release notes before production rollout.
Monitor application logs for unusual access to /sys/selectDepart.
Prioritize internet-facing systems and shared multi-user environments first.
Validation and detection
Inventory JeecgBoot versions across production, staging, and exposed test systems.
Confirm no production instance remains on 3.9.1 or earlier.
Verify /sys/selectDepart enforces expected authorization in a controlled test.
Review access logs for unexpected unauthenticated requests to the route.
Confirm deployment artifacts match the patched 3.9.2 release.
Based on public source material and reviewed before publication.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · low confidence lookup
CWE-266: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
CWE-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve
time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present,
the table keeps the source vectors side by side instead of collapsing them into the highest score.