CVE-2021-21299 · cross-distro fix matrix

CVE-2021-21299: hyper is an open-source HTTP library for Rust (crates.io). In hyper from version 0.12.0 and before versions 0.13.10 and 0.14.3 there is a vulnerability that can enable a request smuggling attack. The HTTP server code had a flaw that incorrectly understands some requests with multiple transfer-encodi

Affects 2 Linux releases across 2 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-21299 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

rust-hyper→ fixed in0.14.19-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y rust-hyper
```

Debian trixie

Source: Debian Security Tracker

rust-hyper→ fixed in0.14.19-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y rust-hyper
```

Are YOU affected by CVE-2021-21299?

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

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

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