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Vulnerability record · CVE-2025-62712 · published 30 October 2025

CVE-2025-62712: Fit2cloud jumpserver missing authorization vulnerability

Fit2cloud · Jumpserver

JumpServer is an open source bastion host and an operation and maintenance security audit system. In JumpServer versions prior to v3.10.20-lts and v4.10.11-lts, an authenticated, non-privileged user can retrieve connection tokens belonging to other users via the super-connection API endpoint (/api/v1/authentication/super-connection-token/). When accessed from a web browser, this endpoint returns connection tokens created by all users instead of restricting results to tokens owned by or authorized for the requester. An attacker who obtains these tokens can use them to initiate connections to managed assets on behalf of the original token owners, resulting in unauthorized access and privilege escalation across sensitive systems. This vulnerability is fixed in v3.10.20-lts and v4.10.11-lts.

8.1 CVSS 3.1 High EPSS 0.47% · top 62.0% CWE-862 · Missing authorization
8.1CVSS 3.1 base score
0.47%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

JumpServer is an open source bastion host and an operation and maintenance security audit system. In JumpServer versions prior to v3.10.20-lts and v4.10.11-lts, an authenticated, non-privileged user can retrieve connection tokens belonging to other users via the super-connection API endpoint (/api/v1/authentication/super-connection-token/). When accessed from a web browser, this endpoint returns connection tokens created by all users instead of restricting results to tokens owned by or authorized for the requester. An attacker who obtains these tokens can use them to initiate connections to managed assets on behalf of the original token owners, resulting in unauthorized access and privilege escalation across sensitive systems. This vulnerability is fixed in v3.10.20-lts and v4.10.11-lts.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/jumpserver/jumpserver/commit/453ad331eec9d9667a38de735d6612608e558491 Patch
https://github.com/jumpserver/jumpserver/security/advisories/GHSA-6ghx-6vpv-3wg7 MitigationVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.9CVE-2024-29202Fit2cloud jumpserver code injection vulnerabilityJumpServer is an open source bastion host and an operation and maintenance security audit system. Attackers can exploit a Jinja2 template injection v…EPSS 5.9%9.9CVE-2024-29201Fit2cloud jumpserver code injection vulnerabilityJumpServer is an open source bastion host and an operation and maintenance security audit system. Attackers can bypass the input validation mechanism…EPSS 5.9%9.9CVE-2023-43651Fit2cloud jumpserver code injection vulnerabilityJumpServer is an open source bastion host. An authenticated user can exploit a vulnerability in MongoDB sessions to execute arbitrary commands, leadi…EPSS 1.7%9.9CVE-2023-28110Fit2cloud jumpserver command injection vulnerabilityJumpserver is a popular open source bastion host, and Koko is a Jumpserver component that is the Go version of coco, refactoring coco's SSH/SFTP serv…EPSS 0.85%9.8CVE-2024-40629Fit2cloud jumpserver path traversal vulnerabilityJumpServer is an open-source Privileged Access Management (PAM) tool that provides DevOps and IT teams with on-demand and secure access to SSH, RDP, …EPSS 1.3%9.8CVE-2023-48193Fit2cloud jumpserver vulnerabilityInsecure Permissions vulnerability in JumpServer GPLv3 v.3.8.0 allows a remote attacker to execute arbitrary code via bypassing the command filtering…EPSS 2.0%9.8CVE-2023-42818Fit2cloud jumpserver improper authentication vulnerabilityJumpServer is an open source bastion host. When users enable MFA and use a public key for authentication, the Koko SSH server does not verify the cor…EPSS 0.58%9.1CVE-2024-40628Fit2cloud jumpserver path traversal vulnerabilityJumpServer is an open-source Privileged Access Management (PAM) tool that provides DevOps and IT teams with on-demand and secure access to SSH, RDP, …EPSS 0.86%

Source: NIST National Vulnerability Database (record CVE-2025-62712), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.