GHSA-4rcq-jv2f-898j: qutebrowser (CVE-2020-11054)

Package	Ecosystem	Affected	Fixed in
qutebrowser	PyPI	<1.11.1	1.11.1

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

qutebrowser versions before 1.11.1 display a URL as green after a user has overridden a certificate error for that site, when it should remain yellow. An attacker would need a site with a certificate problem that the user had already accepted, and the result is a false sense of security rather than direct compromise. Upgrade to qutebrowser 1.11.1. If upgrading is not possible, treat any host with a certificate exception as insecure, or set content.ssl_strict to True to prevent certificate exceptions.

Written 5 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
3.5	Low	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.015, the 74th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:38 UTC First seen by agentprime
31 Oct 2026, 14:38 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.