Missing authorization in JeecgBoot exposes other users' details
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
JeecgBoot through 3.9.5 contains a missing authorization check (CWE-862) in the getUserDetailByUserId handler of SysUserController. Any authenticated user with low privileges can supply arbitrary userId values to read other users' real names, usernames, emails, phone numbers, birthdays, employee numbers, department paths and posts. A public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysUserController getUserDetailByUserId handler that allows any authenticated user to read other users' details. Low-privileged attackers can supply arbitrary userId values to retrieve real names, usernames, emails, phone numbers, birthdays, employee numbers, department paths and posts.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for JeecgBoot.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-11 Threatist record created from CVE-2026-108891
- 2026-10-11 Alias added: GHSA-4gwg-345v-gmc7
- 2026-10-18 CISA SSVC decision points changed
- 2026-10-18 Priority changed: LOW → MEDIUM
References
Exploit 1
Other 1
More jeecgboot vulnerabilities
- TI-2023-20232 jeecg-boot v3.5.1 was discovered to contain a SQL injection vulnerability via the title… CVSS 3.1CRITICAL 9.8
- TI-2025-41083 JimuReport thru version 2.1.3 is vulnerable to remote code execution when processing… CVSS 3.1CRITICAL 9.8
- TI-2024-32354 JeecgBoot v3.7.1 was discovered to contain a SQL injection vulnerability via the… CVSS 3.1CRITICAL 9.8
- TI-2023-22545 Jeecg boot up to v3.5.3 was discovered to contain a SQL injection vulnerability via the… CVSS 3.1CRITICAL 9.8
- TI-2023-22016 SQL injection vulnerability in jeecg-boot version 3.5.3, allows remote attackers to… CVSS 3.1CRITICAL 9.8
- TI-2023-17367 jeecg-boot 3.5.0 and 3.5.1 have a SQL injection vulnerability the id parameter of the… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-108891 · CVE Program
- CVE-2026-108891 · NVD
- FIRST EPSS
- GHSA-4gwg-345v-gmc7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences