Path Traversal in Openbmb Xagent
CVE-2026-3954
A weakness has been identified in OpenBMB XAgent 1.0.0. Affected by this vulnerability is the function workspace of the file XAgentServer/application/routers/workspace.py. This manipulation of the argument file_name causes path traversal. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.007 (50.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.007 · change: +0.002
Affected products
- Openbmb Xagent — versions 1.0.0
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- github.com/OpenBMB/XAgent/issues/420 (issue-tracking)
- github.com/OpenBMB/XAgent/issues/420 (issue-tracking, exploit)
- github.com/OpenBMB/XAgent/ (product)
Frequently asked questions
- What is CVE-2026-3954?
- CVE-2026-3954 is a medium-severity vulnerability in Openbmb Xagent, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-03-11.
- How severe is CVE-2026-3954?
- Medium severity. CVSS v3 base score is 6.5 out of 10.