CVE-2018-10895: qutebrowser - Cross-Site Request Forgery Vulnerability

qutebrowser Updated 02 Oct 2025

Summary

10/10/2018
Yes i
High
8.8

CVE-2018-10895: Qutebrowser CSRF Vulnerability. Affects qutebrowser versions < 1.4.1. Fixed in 1.4.1. How to fix ↓

Also tracked for

The same CVE-2018-10895 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.

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Background

qutebrowser is a Python-based web browser with a minimalistic interface and extensive keyboard control. It is designed to be fast, efficient, and highly customizable. The vulnerability in qutebrowser versions prior to 1.4.1 allows websites to exploit a cross-site request forgery flaw, enabling them to access 'qute://' URLs. By loading a 'qute://settings/set' URL, a malicious website can set the 'editor.command' to a bash script, resulting in arbitrary code execution.

Vulnerability Detail

The vulnerability in qutebrowser allows malicious websites to perform unauthorized actions on behalf of the user. By tricking the user into visiting a specially crafted website, an attacker can execute arbitrary code on the victim's machine. This can lead to various consequences, including data theft, system compromise, and unauthorized access to sensitive information. The vulnerability is rated as high severity with a CVSS score of 8.8.

How To Fix

Latest published version: 3.7.0 as of 23 Oct 2026

pip install --upgrade "qutebrowser==3.7.0"

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

1.4.1

This is the first release that contains the fix.

pip install --upgrade "qutebrowser==1.4.1"

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

Workaround

There is no known workaround for this vulnerability. It is recommended to update to the latest version of qutebrowser as soon as possible.

Conclusion

The cross-site request forgery vulnerability in qutebrowser versions prior to 1.4.1 allows malicious websites to execute arbitrary code on the victim's machine. To protect against this vulnerability, it is crucial to update to qutebrowser version 1.4.1 or later. For further assistance or support in vulnerability remediation, please contact DevNack.com.

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FAQ

qutebrowser is a Python-based web browser with a minimalistic interface and extensive keyboard control. It aims to provide a fast and efficient browsing experience.

A cross-site request forgery vulnerability allows an attacker to perform unauthorized actions on behalf of a user who is authenticated on a website. By tricking the user into visiting a malicious website, the attacker can exploit this vulnerability to execute arbitrary code or perform actions without the user's consent.

You can use the Vulert Playground at Vulert Scanner to check if your qutebrowser version is affected by this vulnerability. Simply enter your Pipfile.lock file, and Vulert will analyze it for any open-source vulnerabilities, including this one.

Yes, the vulnerability can be fixed by updating qutebrowser to version 1.4.1 or later. It is recommended to update as soon as possible to ensure the security of your browsing experience.

There are no known public exploits of this vulnerability at the time of writing. However, it is important to update qutebrowser to the latest version to mitigate any potential risks.

Related vulnerabilities

Recent vulnerabilities recorded for qutebrowser.

How To Fix

Latest published version: 3.7.0 as of 23 Oct 2026

pip install --upgrade "qutebrowser==3.7.0"

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

1.4.1

This is the first release that contains the fix.

pip install --upgrade "qutebrowser==1.4.1"

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

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