CVE-2020-11054: In qutebrowser versions less than 1.11.1, reloading a page with certificate errors shows a green URL

Q: How do I fix CVE-2020-11054?

qutebrowser: upgrade to 1.11.1; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2020-11054 being exploited?

CVE-2020-11054 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-11054 affect?

CVE-2020-11054 affects qutebrowser, fedora. Severity is low (CVSS 3.5). In qutebrowser versions less than 1.11.1, reloading a page with certificate errors shows a green URL. After a certificate error was overridden by the user, qutebrowser displays the URL as yellow (colors.statusbar.url.warn.fg). However, when

Q: How urgent is CVE-2020-11054?

Priority 31/100. No elevated risk signals yet.

Routine

LOW 3.5UPGRADEMITIGATE

CVE-2020-11054 is a low-severity flaw (CVSS 3.5) affecting qutebrowser, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In qutebrowser versions less than 1.11.1, reloading a page with certificate errors shows a green URL. After a certificate error was overridden by the user, qutebrowser displays the URL as yellow (colors.statusbar.url.warn.fg). However, when the affected website was subsequently loaded again, the URL was mistakenly displayed as green (colors.statusbar.url.success_https). While the user already has seen a certificate error prompt at this point (or

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	3.5 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Weakness	CWE-684
Published	2020-05-07
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: fedoraproject · qutebrowser

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-05-07 21:15 UTCPublished CVE record published
2026-06-17 02:48 UTCUpdated Record last modified

qutebrowser qutebrowser UPGRADE

Affected: < 1.11.1

Fixed in: 1.11.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy qutebrowser || rpm -q qutebrowser || qutebrowser --version

2. UPGRADE to 1.11.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade qutebrowser

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade qutebrowser

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

fedoraproject fedora MITIGATE

Affected: 31 · 32

Fixed in: no fixed release known

Safe to downgrade to: a release before 31

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-11054?

qutebrowser: upgrade to 1.11.1; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-11054 being exploited?

CVE-2020-11054 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-11054 affect?

CVE-2020-11054 affects qutebrowser, fedora. Severity is low (CVSS 3.5). In qutebrowser versions less than 1.11.1, reloading a page with certificate errors shows a green URL. After a certificate error was overridden by the user, qutebrowser displays the URL as yellow (colors.statusbar.url.warn.fg). However, when

How urgent is CVE-2020-11054?

Priority 31/100. No elevated risk signals yet.

Related CVEs

CVE-2021-41146 HIGH 8.8 UPGRADE qutebrowser is an open source keyboard-focused browser with a minimal GUI

References

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