CVE-2021-33880 · cross-distro fix matrix

CVE-2021-33880: The aaugustin websockets library before 9.1 for Python has an Observable Timing Discrepancy on servers when HTTP Basic Authentication is enabled with basic_auth_protocol_factory(credentials=...). An attacker may be able to guess a password via a timing attack.

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-33880 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

python-websockets→ fixed in8.1-1+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y python-websockets
```

Debian bookworm

Source: Debian Security Tracker

python-websockets→ fixed in9.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y python-websockets
```

Debian trixie

Source: Debian Security Tracker

python-websockets→ fixed in9.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y python-websockets
```

Are YOU affected by CVE-2021-33880?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

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