# CVE-2026-108869: JeecgBoot authorization bypass in system announcement API

Source: https://junglewise.ai/threats/cve-2026-108869-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-2026-108869 · Severity: medium · CVSS 4.3 · Published 2026-10-11

JeecgBoot is a low-code development framework used to build enterprise applications. Low-privileged authenticated users can forge system announcements and send them to any other users through multiple communication channels including WebSocket, WeCom, DingTalk, and Feishu. An attacker with basic user credentials can impersonate legitimate system administrators to send false announcements, potentially tricking employees into disclosing sensitive information or taking harmful actions.

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

## Quick answers

**Is CVE-2026-108869 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-108869 being exploited in the wild.

**How severe is CVE-2026-108869?** Medium severity, with a CVSS score of 4.3, published 11 October 2026.

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

**Is there a fix for CVE-2026-108869?** 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-2026-108869 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-108869?** 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 vulnerability is a missing authorization check on the POST /sys/api/sendSysAnnouncement endpoint that fails to verify if the calling user has permission to send system announcements. An authenticated attacker can arbitrarily set the title, content, fromUser, and toUser fields to deliver forged announcements via multiple channels. The issue affects versions through 3.9.5.

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

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