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CVE-2026-54336— JumpServer: KoKo Web Terminal SFTP Path Traversal on Authorized Asset

CVSS 5.4 · Medium EPSS 0.27% · P19

Possible ATT&CK Techniques 1AI

T1083 · File and Directory Discovery

Affected Version Matrix 1

VendorProductVersion RangeStatus
jumpserverjumpserver>= 4.8.0, < 4.10.17affected
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I. Basic Information for CVE-2026-54336

Vulnerability Information
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Vulnerability Title
JumpServer: KoKo Web Terminal SFTP Path Traversal on Authorized Asset
Source: CVE Program / CVE List V5
Vulnerability Description
JumpServer is an open source bastion host and an operation and maintenance security audit system. From 4.8.0 until 4.10.17, an authenticated user with SFTP permission to an authorized asset can submit crafted traversal paths through the KoKo Web Terminal SFTP feature, causing AssetDir.GetRealPath() in pkg/srvconn/sftp_asset.go to resolve paths outside the intended SFTP root and permit read, list, write, rename, or delete operations under the configured backend account on that asset. This issue is fixed in version 4.10.17.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Jumpserver 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jumpserver是JumpServer公司开源的一款运维审计堡垒机。 Jumpserver 4.8.0版本至4.10.17之前版本存在路径遍历漏洞，该漏洞源于KoKo Web Terminal SFTP功能对特制路径处理不当，可能导致路径遍历，并允许已认证用户在已授权资产上以配置的后台账户执行读取、列表、写入、重命名或删除操作。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
jumpserverjumpserver >= 4.8.0, < 4.10.17 -

II. Public POCs for CVE-2026-54336

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III. Intelligence Information for CVE-2026-54336

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Patches & Fixes for CVE-2026-54336 (1)

Vendor Advisories for CVE-2026-54336 (1)

Other References for CVE-2026-54336 (1)

Same Patch Batch · jumpserver · 2026-08-17 · 3 CVEs total

CVE-2026-448456.7 MEDIUMJumpServer: Remote Command Execution (RCE) via Jinja Template Injection in Applet Host Dep
CVE-2026-448466.2 MEDIUMJumpServer: Privilege Overwrite via Organization Invite Logic Flaw

IV. Related Vulnerabilities

Same product: jumpserver
Same vendor: jumpserver
Same weakness: CWE-22

V. Comments for CVE-2026-54336

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