CVE-2021-28169 · cross-distro fix matrix

CVE-2021-28169: For Eclipse Jetty versions <= 9.4.40, <= 10.0.2, <= 11.0.2, it is possible for requests to the ConcatServlet with a doubly encoded path to access protected resources within the WEB-INF directory. For example a request to `/concat?/%2557EB-INF/web.xml` can retrieve the web.xml file. This can reveal s

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-28169 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

jetty9→ fixed in9.4.39-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y jetty9
```

Debian bookworm

Source: Debian Security Tracker

jetty9→ fixed in9.4.39-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y jetty9
```

Debian trixie

Source: Debian Security Tracker

jetty9→ fixed in9.4.39-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y jetty9
```

Are YOU affected by CVE-2021-28169?

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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