JumpServer Unauthorized LDAP Configuration Access via WebSocket
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to v3.10.21-lts and v4.10.12-lts, a low-privileged authenticated user can invoke LDAP configuration tests and start LDAP synchronization by sending crafted messages to the /ws/ldap/ WebSocket endpoint, bypassing authorization checks and potentially exposing LDAP credentials or causing unintended sync operations. This vulnerability is fixed in v3.10.21-lts and v4.10.12-lts.
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| jumpserver | jumpserver | before 3.10.21-lts; 4.0.0 to before 4.10.12-lts | 3.10.21-lts, 4.10.12-lts | Patch available | CNA |
- jumpserver Vendorjumpserver Affected before 3.10.21-lts; 4.0.0 to before 4.10.12-lts Fixed in 3.10.21-lts, 4.10.12-lts Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:* | before 3.10.21; 4.0.0 to before 4.10.12 | Vulnerable | 1Panel-dev |
- cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:* Versions before 3.10.21; 4.0.0 to before 4.10.12 Vulnerable ·1Panel-dev
Remediation
- Fix · CNA jumpserver (jumpserver) Fixed in 3.10.21-lts, 4.10.12-lts
Timeline
- 2026-10-02 Threatist record created from CVE-2025-62795
More jumpserver vulnerabilities
- TI-2024-27040 Arbitrary File Read in Ansible Playbooks in Jumpserver CVSS 3.1CRITICAL 10.0
- TI-2023-23378 Non-MFA account takeover via using only SSH public key to login in jumpserver CVSS 3.1CRITICAL 9.1
- TI-2023-22607 JumpServer session replays download without authentication CVSS 3.1HIGH 8.2
- TI-2024-27041 Arbitrary File Write in Ansible Playbooks leads to RCE in Jumpserver CVSS 3.1CRITICAL 10.0
- TI-2024-19371 JumpServer vulnerable to Jinja2 template injection in Ansible leads to RCE in Celery CVSS 3.1CRITICAL 10.0
- TI-2024-19370 JumpServer's insecure Ansible playbook validation leads to RCE in Celery CVSS 3.1CRITICAL 10.0
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences