CVE-2025-27516 · cross-distro fix matrix

CVE-2025-27516: Jinja is an extensible templating engine. Prior to 3.1.6, an oversight in how the Jinja sandboxed environment interacts with the |attr filter allows an attacker that controls the content of a template to execute arbitrary Python code. To exploit the vulnerability, an attacker needs to control the co

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

Fix per ecosystem

Each block below is a distro release where CVE-2025-27516 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

jinja2→ fixed in2.11.3-1+deb11u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y jinja2
```

Debian bookworm

Source: Debian Security Tracker

jinja2→ fixed in3.1.2-1+deb12u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y jinja2
```

Debian trixie

Source: Debian Security Tracker

jinja2→ fixed in3.1.6-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y jinja2
```

Are YOU affected by CVE-2025-27516?

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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