Vulnerability Description
qutebrowser is an open source keyboard-focused browser with a minimal GUI. Starting with qutebrowser v1.7.0, the Windows installer for qutebrowser registers a `qutebrowserurl:` URL handler. With certain applications, opening a specially crafted `qutebrowserurl:...` URL can lead to execution of qutebrowser commands, which in turn allows arbitrary code execution via commands such as `:spawn` or `:debug-pyeval`. Only Windows installs where qutebrowser is registered as URL handler are affected. The issue has been fixed in qutebrowser v2.4.0. The fix also adds additional hardening for potential similar issues on Linux (by adding the new --untrusted-args flag to the .desktop file), though no such vulnerabilities are known.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qutebrowser | Qutebrowser | <= 1.7.0 |
Related Weaknesses (CWE)
References
- https://github.com/qutebrowser/qutebrowser/commit/8f46ba3f6dc7b18375f7aa63c48a1fPatchThird Party Advisory
- https://github.com/qutebrowser/qutebrowser/security/advisories/GHSA-vw27-fwjf-5qThird Party Advisory
- https://github.com/qutebrowser/qutebrowser/commit/8f46ba3f6dc7b18375f7aa63c48a1fPatchThird Party Advisory
- https://github.com/qutebrowser/qutebrowser/security/advisories/GHSA-vw27-fwjf-5qThird Party Advisory
FAQ
What is CVE-2021-41146?
CVE-2021-41146 is a vulnerability with a CVSS score of 8.8 (HIGH). qutebrowser is an open source keyboard-focused browser with a minimal GUI. Starting with qutebrowser v1.7.0, the Windows installer for qutebrowser registers a `qutebrowserurl:` URL handler. With certa...
How severe is CVE-2021-41146?
CVE-2021-41146 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-41146?
Check the references section above for vendor advisories and patch information. Affected products include: Qutebrowser Qutebrowser.