Unauthorized Access in JumpServer Bastion Host by Low-Privileged Users
CVE-2025-62795

7.1HIGH

Key Information:

Vendor

Jumpserver

Status
Jumpserver
Vendor
CVE Published:
30 October 2025

What is CVE-2025-62795?

JumpServer, an open source bastion host and security audit system, has a vulnerability where low-privileged authenticated users can exploit WebSocket functionality. By sending specially crafted messages to the /ws/ldap/ endpoint, an attacker may bypass authorization checks, allowing them to invoke LDAP configuration tests and initiate LDAP synchronization. This could lead to the exposure of sensitive LDAP credentials and unintended data synchronization processes. The issue has been addressed in JumpServer versions v3.10.21-lts and v4.10.12-lts.

Affected Version(s)

jumpserver < 3.10.21-lts < 3.10.21-lts

jumpserver >= 4.0.0, < 4.10.12-lts < 4.0.0, 4.10.12-lts

References

https://github.com/jumpserver/jumpserver/security/advisor...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-62795 : Unauthorized Access in JumpServer Bastion Host by Low-Privileged Users