EUVD-2026-56851
GHSA-c7q4-h75g-2c94
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable with no authentication due to open self-registration (PR:N, AV:N); read-only disclosure with no integrity or availability impact; scope unchanged as traversal operates within the container's accessible filesystem.
Primary rating from Vendor (vulncheck).
CVSS VectorVendor: vulncheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
4DescriptionCVE.org
XAgent contains a path traversal vulnerability in the workspace file endpoint that allows self-registered or default-credential users to read arbitrary files on the host by supplying parent-directory segments in the file_name form field with no path containment check. Attackers can register an account without email verification, then submit crafted file_name values such as parent-directory traversal sequences to the /workspace/file handler to read host files including application secrets, database credentials, and system files outside the Docker sandbox.
Articles & Coverage 1
AnalysisAI
Path traversal in XAgent's ToolServerNode workspace file endpoint allows any network-accessible user to read arbitrary files on the host by exploiting missing path containment validation in the /workspace/file handler. Because XAgent permits self-registration without email verification, an attacker requires no prior credentials - trivial account creation is sufficient to reach the vulnerable endpoint. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the XAgent ToolServerNode service is network-accessible and that open self-registration is enabled (the default configuration, which does not require email verification). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 8.7 with vector AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N accurately reflects the threat: network-reachable, low complexity, no authentication barrier, and high confidentiality impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated external attacker registers a new XAgent account via the open self-registration endpoint (no email verification required), then issues a POST request to `/workspace/file` with a `file_path` value such as `../../../../etc/passwd` or a path targeting XAgent's own `config.yml` containing database credentials. The server resolves the traversal sequence relative to the workspace directory without containment checks and returns the file contents. … |
| Remediation | Update the XAgent installation to include commit 26f2b6e or any subsequent commit that incorporates the `ToolServer/ToolServerNode/utils/path_security.py` module, available at https://github.com/OpenBMB/XAgent/commit/26f2b6edc75127af524f027c022b382967178e3a. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify and inventory all XAgent deployments and confirm their network accessibility to external users. …
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External POC / Exploit Code
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