CVE-2018-25091 · cross-distro fix matrix

CVE-2018-25091: urllib3 before 1.24.2 does not remove the authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the authorization header to be exposed to unintended hosts or transmitted in cleartext. NOTE: this is

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

Fix per ecosystem

Each block below is a distro release where CVE-2018-25091 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

python-urllib3→ fixed in1.25.6-4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y python-urllib3
```

Debian bookworm

Source: Debian Security Tracker

python-urllib3→ fixed in1.25.6-4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y python-urllib3
```

Debian trixie

Source: Debian Security Tracker

python-urllib3→ fixed in1.25.6-4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y python-urllib3
```

Are YOU affected by CVE-2018-25091?

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.

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