---
id: CVE-2026-108677
title: >-
  JeecgBoot through 3.9.5 contains a missing authorization vulnerability in GET
  /sys/api/getUserByName that allows low-privileged authenticated users to
  retrieve any user's stored password value
summary: >-
  JeecgBoot through 3.9.5 contains a missing authorization vulnerability in GET
  /sys/api/getUserByName that allows low-privileged authenticated users to
  retrieve any user's stored password value. Attackers can decrypt the AES-CBC
  protected…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-862
published: '2026-10-10'
updated: '2026-10-10'
sourceUpdated: '2026-10-10T22:16:44.800'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-108677'
references:
  - url: >-
      https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_sys_api_credential_family.py
    label: disclosure@vulncheck.com
  - url: >-
      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#L100-L110
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-sys-api-getuserbyname
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-10T22:34:13.274Z'
---

## Overview

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in GET /sys/api/getUserByName that allows low-privileged authenticated users to retrieve any user's stored password value. Attackers can decrypt the AES-CBC protected response using the hard-coded key exposed by /sys/getEncryptedString to obtain administrators' password ciphertexts for offline guessing.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.