# CVE-2026-108871: JeecgBoot missing authorization in saveDatarule handler

Source: https://junglewise.ai/threats/cve-2026-108871-jeecgboot-through-3-9-5-contains-a-missing-authorization  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-11. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-108871 · Severity: medium · CVSS 5.4 · Published 2026-10-11

JeecgBoot is a low-code development framework used to build enterprise applications. A low-privileged authenticated user can modify data access rules for department roles without proper authorization checks, allowing them to widen row-level data visibility or alter filtering rules applied to other roles. This could lead to unauthorized access to sensitive departmental data.

Technologies: [JeecgBoot](https://junglewise.ai/threats/technologies/jeecgboot). Vendors: [JeecgBoot](https://junglewise.ai/threats/vendors/jeecgboot).

## Quick answers

**Is CVE-2026-108871 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-108871 being exploited in the wild.

**How severe is CVE-2026-108871?** Medium severity, with a CVSS score of 5.4, published 11 October 2026.

**Which products and versions are affected?** JeecgBoot through 3.9.5.

**Is there a fix for CVE-2026-108871?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-108871 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-108871?** Check whether you run JeecgBoot at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The SysDepartRoleController's saveDatarule handler lacks authorization checks before modifying data rule assignments. An authenticated attacker with low privileges can craft requests with arbitrary permissionId, roleId, and dataRuleIds values to overwrite data_rule_ids in the database. The vulnerability requires authentication but has no further preconditions, allowing privilege escalation through data access boundary manipulation.

## Affected products

- JeecgBoot JeecgBoot through 3.9.5

## Timeline

- 2026-10-11: disclosed

## References

- [https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_depart_role_datarule_write.py](https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_depart_role_datarule_write.py)
- [https://github.com/jeecgboot/JeecgBoot/blob/e3b9dc0aefe1943d9772b026f64ed671a7c82802/jeecg-boot/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/system/controller/SysDepartRoleController.java](https://github.com/jeecgboot/JeecgBoot/blob/e3b9dc0aefe1943d9772b026f64ed671a7c82802/jeecg-boot/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/system/controller/SysDepartRoleController.java)

## Related threats

- [JeecgBoot SQL injection in Table Dictionary API](https://junglewise.ai/threats/cve-2026-124555-a-weakness-has-been-identified-in-jeecgboot-3-9-5-this)
- [JeecgBoot SQL injection in JimuBI drag chart endpoint](https://junglewise.ai/threats/cve-2026-124554-a-security-flaw-has-been-discovered-in-jeecgboot-3-9-5-this)
- [JeecgBoot SQL injection in SqlInjectionUtil keyword bypass](https://junglewise.ai/threats/cve-2026-112017-jeecgboot-before-3-9-5-contains-an-sql-injection-vulnerability)
- [JeecgBoot missing authorization in getUserDetailByUserId](https://junglewise.ai/threats/cve-2026-108891-jeecgboot-through-3-9-5-contains-a-missing-authorization)
- [JeecgBoot authorization bypass in SysDepartRoleController exportXls](https://junglewise.ai/threats/cve-2026-108888-jeecgboot-through-3-9-5-contains-a-missing-authorization)