CVE-2025-6926 · cross-distro fix matrix

CVE-2025-6926: Improper Authentication vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows : Bypass Authentication.This issue affects Mediawiki - CentralAuth Extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.

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

Fix per ecosystem

Each block below is a distro release where CVE-2025-6926 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

mediawiki→ fixed in1:1.35.13-1+deb11u4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mediawiki
```

Debian bookworm

Source: Debian Security Tracker

mediawiki→ fixed in1:1.39.13-1~deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mediawiki
```

Debian trixie

Source: Debian Security Tracker

mediawiki→ fixed in1:1.43.3+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mediawiki
```

Are YOU affected by CVE-2025-6926?

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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