CVE-2026-54336 — JumpServer: KoKo Web Terminal SFTP Path Traversal on Authorized Asset
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 auth…
Published: 2026-08-17 · CVSS: 5.4 · CVSS 3.1
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 · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7