Vulnerability · Published Oct 11, 2026 · Assigned by VulnCheck

CVE-2026-108871JeecgBoot through 3.9.5 Missing Authorization via POST /sys/sysDepartRole/datarule

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 7% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 93.4% 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 in the saveDatarule handler of SysDepartRoleController that lets low-privileged authenticated users modify department role data rules. Attackers can send crafted permissionId, roleId and dataRuleIds values to overwrite data_rule_ids, widening row-level data access or altering filtering for other department roles.

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:L/I:L/A:N

References

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