Shannon: Docker Sandbox Fix for Browser Scans
A single change, PR #492, fixes browser scan failures on AppArmor-enabled Linux by adding opt-in relaxations for container confinement and Chromium sandboxing. No broader pattern — the impact is restored reliability for Docker-based preflight and browser phases on Debian 13 and Ubuntu 24.04 and later.
Duration: PT2M5S
Episode overview
This episode is a short developer briefing from Shannon.
It explains recent repository work in plain language.
- Show: Shannon
- Published: 2026-10-15T06:05:10Z
- Audio duration: PT2M5S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good morning, it's Thursday, October 15th, 2026, and here's your Shannon update.
There's no broad pattern today — just one high-impact reliability fix for Docker-based scanning. Pull request 492 addresses a hard failure where browser-driven phases abort on newer Linux hosts.
The context, tracked as issue 469, centers on systems with App Armor enabled, including Debian 13 and Ubuntu 24.04 and later. In those environments, Chromium cannot initialize its internal sandbox inside Docker's default security profile, so preflight authentication and browser phases stop with a permission denied…
The change introduces two opt-in controls for the scanning workflow. One relaxes App Armor confinement at the container level. The other runs Chromium without its internal sandbox. Implementation spans container setup, environment handling, and Playwright configuration generation, which means the behavior is applied…
What's next is practical validation. If you operate on an affected distribution, plan to test the new options and confirm that preflight and browser scans complete end to end. Watch for follow-up guidance on defaults, documentation, and whether a more contained long-term fix is possible.
Tha…
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