SEPTEMBER 19, 2026
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Case File

CVE-2026-54336

MEDIUM · CVSS 5.4 EPSS 0.32% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-17 · Last synced 2026-09-16

CyberRota Analysis

AI-Generated

Authenticated users with SFTP permissions in JumpServer versions 4.8.0 to 4.10.17 can exploit a path traversal vulnerability through the KoKo Web Terminal SFTP feature, allowing unauthorized access to files outside the intended SFTP root. This could lead to unauthorized read, write, rename, or delete operations on the asset's backend account. Organizations using affected versions should prioritize upgrading to version 4.10.17 to mitigate potential security risks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-54336
Severity
MEDIUM
CVSS
5.4
EPSS
0.32%

Original NVD 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.