Vulnerability · Published Oct 10, 2026 · Assigned by VulnCheck

CVE-2026-108662JeecgBoot through 3.9.5 Missing Authorization via /sys/tenant/deleteTenantPackUser

Medium 5.4

In plain English

A medium-severity missing authorization in JeecgBoot from jeecgboot. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 88.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

JeecgBoot through 3.9.5 contains a missing authorization vulnerability that allows low-privileged authenticated users to remove users from tenant product packs via PUT /sys/tenant/deleteTenantPackUser. Attackers can supply arbitrary userId and packId values in the request body to remove any user from any tenant's product pack, revoking permissions such as tenant administrator access.

Affected products (as reported)

Vendor	Product	Versions
jeecgboot	JeecgBoot	0 – through 3.9.5

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

References

Researcher Proof of Concept exploit
Vulnerable Code (v3.9.5) technical-description
VulnCheck Advisory: JeecgBoot through 3.9.5 Missing Authorization via /sys/tenant/deleteTenantPackUser third-party-advisory