---
title: "CVE-2025-47241: Browser Use allows bypassing `allowed_domains` by putting a decoy domain in http auth username portion of a URL"
url: https://erroneo.us/security/cve/CVE-2025-47241/
description: "CVE-2025-47241 (browser-use (PyPI)): In browser-use (aka Browser Use) before 0.1.45, URL parsing of alloweddomains is mishandled because userinfo can be…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-05-03
date_modified: 2025-05-05
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-47241"
kev: false
cvss: 4
epss: 0.00454
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-47241: Browser Use allows bypassing `allowed_domains` by putting a decoy domain in http auth username portion of a URL

**Signal:** Normal patch cycle. No exploitation signal; fix it in your next routine update if you are affected. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.5% , percentile 38: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 38% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes browser-use (PyPI) <= 0.1.44, fixed in 0.1.45 . Check your lockfile, including transitive dependencies.

## What it is

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

## Affected packages

- PyPI `browser-use` <= 0.1.44 → fixed: 0.1.45

## Affected products (CVE record)

- browser-use browser-use: < 0.1.45

## Severity

- mitre CVSS 3.1: 4 `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N`
- GitHub CVSS 3.1: 9.3 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable no , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 0.45% probability of exploitation activity in the next 30 days; percentile 38.

## Sources

- [GitHub Advisory GHSA-x39x-9qw5-ghrf](https://github.com/advisories/GHSA-x39x-9qw5-ghrf)
- [CVE.org record CVE-2025-47241](https://www.cve.org/CVERecord?id=CVE-2025-47241)
- [NVD entry CVE-2025-47241](https://nvd.nist.gov/vuln/detail/CVE-2025-47241)
- [github.com](https://github.com/browser-use/browser-use/security/advisories/GHSA-x39x-9qw5-ghrf)
- [github.com](https://github.com/browser-use/browser-use/releases/tag/0.1.45)
- [github.com](https://github.com/browser-use/browser-use/pull/1561)

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Source page: https://erroneo.us/security/cve/CVE-2025-47241/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt