CVE-2025-47278 · cross-distro fix matrix

CVE-2025-47278: Flask is a web server gateway interface (WSGI) web application framework. In Flask 3.1.0, the way fallback key configuration was handled resulted in the last fallback key being used for signing, rather than the current signing key. Signing is provided by the `itsdangerous` library. A list of keys ca

Affects 1 Linux release across 1 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2025-47278 has a known fix. Run the listed command on that distro to remediate.

Debian trixie

Source: Debian Security Tracker

flask→ fixed in3.1.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y flask
```

Are YOU affected by CVE-2025-47278?

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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