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

qutebrowser Updated 02 Oct 2025

Summary

12/07/2018
Yes i
High
8.8

CVE-2018-10895: qutebrowser before version 1.4.1 is vulnerable to a cross-site request forgery flaw that allows websites to access 'qute://*' URLs. Affects qutebrowser across 2 version ranges.

< 1.4.1 < 43e58ac865ff862c2008c510fc5f7627e10b4660

Fixed in 43e58ac865ff862c2008c510fc5f7627e10b4660. 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 web browser that focuses on keyboard efficiency and minimalism. It is built using Python and QtWebEngine, providing users with a fast and customizable browsing experience. However, qutebrowser versions prior to 1.4.1 are vulnerable to a cross-site request forgery (CSRF) flaw. This vulnerability allows malicious websites to access 'qute://' URLs and exploit them to execute arbitrary code.

Vulnerability Detail

The CSRF vulnerability in qutebrowser arises from a flaw that enables websites to load 'qute://settings/set' URLs. By doing so, an attacker can modify the 'editor.command' setting to execute a bash script of their choice. This can lead to arbitrary code execution on the victim's system. An attacker could trick a user into visiting a malicious website, which would then exploit this vulnerability to execute arbitrary commands on the user's machine.

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

43e58ac865ff862c2008c510fc5f7627e10b4660

This is the first release that contains the fix.

pip install --upgrade "qutebrowser==43e58ac865ff862c2008c510fc5f7627e10b4660"

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 to ensure the security of your browsing experience.

Conclusion

The CSRF vulnerability in qutebrowser versions prior to 1.4.1 allows malicious websites to execute arbitrary code on a user's system. To mitigate this risk, users should update to qutebrowser version 1.4.1 or later. It is crucial to keep software up to date to ensure a secure browsing experience. For further support on vulnerability remediation, contact DevNack.com.

See every vulnerability recorded for qutebrowser →

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FAQ

qutebrowser is a keyboard-focused web browser built using Python and QtWebEngine. It offers a minimalistic and efficient browsing experience.

Cross-Site Request Forgery (CSRF) is a type of security vulnerability that allows an attacker to perform unwanted actions on behalf of a victim user.

This vulnerability allows malicious websites to execute arbitrary code on a user's system, potentially leading to unauthorized access, data theft, or other malicious activities.

Yes, the vulnerability has been fixed in qutebrowser version 1.4.1. Users are advised to update to this version or later to mitigate the risk.

No, there are no known workarounds for this vulnerability. Updating to the latest version of qutebrowser is the recommended solution.

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

43e58ac865ff862c2008c510fc5f7627e10b4660

This is the first release that contains the fix.

pip install --upgrade "qutebrowser==43e58ac865ff862c2008c510fc5f7627e10b4660"

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

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