Directory traversal in OpenBMB XAgent upload handler lets attackers reach files
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
OpenBMB XAgent v1.0.0 contains a directory traversal flaw in the upload_file handler in ToolServer/ToolServerNode/main.py, tracked as CWE-22. An unauthenticated remote attacker can reach the upload path to read or write files outside the intended directory, with high impact to confidentiality, integrity and availability.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Description from the CNA
OpenBMB XAgent v1.0.0 contains directory traversal vulnerability in main-upload_file-the-preserved-live-upload-file-witness-directly-reaches (ToolServer/ToolServerNode/main.py:46).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for OpenBMB XAgent.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Timeline
- 2026-10-29 Threatist record created from CVE-2026-51912
- 2026-10-29 Alias added: GHSA-3gjx-8vg5-m9wp
- 2026-11-04 EPSS moved to the 50th–90th percentile
- 2026-11-04 CVSS score added · CISA ADP
- 2026-11-04 Weakness changed · CISA ADP
- 2026-11-04 CISA SSVC decision points changed
- 2026-11-04 Priority changed: LOW → MEDIUM
References
Sources
- CVE-2026-51912 · CVE Program
- CVE-2026-51912 · NVD
- FIRST EPSS
- GHSA-3gjx-8vg5-m9wp · GitHub Advisory Database · CC BY 4.0
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