Intel

AIKIDO-2025-10949

browser-use is vulnerable to Exposure of Sensitive Information to an Unauthorized Actor

Exposure of Sensitive Information to an Unauthorized Actor Pre-CVE
Found by Aikido Intel before public disclosure or CVE publication.
Published Dec 15, 2025

61

Medium Risk

This Affects:

PYTHONbrowser-use
0.7.8 - 0.11.0
Fixed in 0.11.1
Are you affected? Scan for Free

TL;DR

Affected versions of this package are vulnerable to sensitive information disclosure due to a missing filtering step for state messages, specifically within the agent_history_description. It allows sensitive values (like passwords and API keys) from action results to be included in messages sent to the LLM, as the system failed to replace these actual values with placeholder tags before transmission. An attacker could exploit this by crafting malicious actions or prompts that cause the agent to execute operations returning sensitive data, which would then be leaked into the LLM's context in subsequent messages, potentially enabling the extraction of credentials, secrets, or other protected information through the chat history.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

browser-use is vulnerable to Exposure of Sensitive Information to an Unauthorized Actor in versions 0.7.8 - 0.11.0.

How to fix this

Upgrade the browser-use library to the patch version.